Thread: Help me PLEASe! I need to submit by 8.30am tmr!

import java.util.Scanner;

public class S10122534c_Assignment
{
public static void main(String[] args)
{
final int MAXSIZE = 50; // maximum number of students
String[] name = new String[MAXSIZE]; // array to store the names of the students
double[] caMark = new double[MAXSIZE]; // array to store the Continuous Assessment marks
double[] ctMark = new double[MAXSIZE]; // array to store the Common Test marks
double[] asgMark = new double[MAXSIZE]; // array to store the Assignment marks
double[] finalMark = new double [MAXSIZE]; // array to store the Final marks
int count = 0;
Scanner input = new Scanner(System.in);
// initialize the array with students
count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark);
int choice;
finalMark = calculateFinalMark(count,caMark, ctMark, asgMark);
do
{
choice = input.nextInt();
switch (choice)
{ case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break;
case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break;
case 3: addNewStudent(count);break;
case 4: updateMarks(asgMark, count);break;
case 5: exit();break;
default:System.out.print("Thank you.");
}
}while (choice != 0);

}
// method to initialize the arrays with students
public static int initialization(String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark)
{
namer [0] = "Agnes Tan";
caMark [0] = 75;
ctMark [0] = 68;
asgMark [0] = 82;

name [1] = "Benny Ong";
caMark [1] = 66;
ctMark [1] = 30;
asgMark [1] = 35;

name [2] = "Denise Ng";
caMark[2] = 55;
ctMark [2] = 42;
asgMark [2] = 50;

name [3] = "Jimmy Tay";
caMark [3] = 80;
ctMark [3] = 76;
asgMark[3] = 82;

name [4] = "Evelyn Low";
caMark [4] = 70;
ctMark [4] = 60;
asgMark [4] = 65;

return 5;

}
public static void displayMenue()
{
String[] nameArr; int[] caMarkArr; int[] ctMarkArr; int[] asgMarkArr; int[] finalMarkArr;
{
System.out.println ("MENUE");
System.out.println ("========================================");
System.out.println (" [1]. Display the results of all students");
System.out.println (" [2]. Display the students who have failed");
System.out.println (" [3]. Add a new student");
System.out.println (" [4]. Update assignment mark of a student");
System.out.println (" [0]. Exit");
System.out.println ("Enter your option: _____ ");
System.out.println ("=========================================");
}
}
public static void displayStudentResults(String[] nameArr, int[] caMarkArr, int[] ctMarkArr, int[] asgMarkArr, int[] finalMarkArr)
{ int [] numArr = new int[50];
System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE");
for (int i=0; i<numArr.length; i++)
{ System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]);
numArr[i]=i+1;
}
}
//Calculate Final marks to compute whether the student has passed & to know the grades
public static double calculateFinalMarks (int count, double[] caMark, double[] ctMark, double[] asgMark)
{
int a = count;
finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]);
System.out.print(finalMark);
count++;
return finalMark;
}
public static void displayFailedStudents (String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark)
{
System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE");
for (int l=0; l<count; l++)
{
if (finalMark < 50)
System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]);
}
}
public static void addNewStudent(int count)
{
System.out.println("Option 3: Add New Student");
System.out.println("Enter Student Name: ");
String name = input.next();
System.out.println("Enter CA Marks: ");
double caMarks = input.nextDouble();
System.out.println("Enter CT Marks: ");
double ctMarks = input.nextDouble();
System.out.println("Enter ASG Marks: ");
double asgMarks = input.nextDouble();
System.out.println("One Student Added.");
count++;
}
public static void updateMarks(int count, double asgMark)
{ int i = count;
System.out.println("Option 4: Update Assignment Mark of a Student: ");
System.out.println("Enter the serial number of the student to update : ");
i = input.nextInt();
System.out.println("Enter new assignment mark : ");
double asgMark = input.nextDouble();
System.out.println("The assignment mark is updated. ");
asgMark[count-1] = asgMarks;
}
public static char gradeMark( double finalMark)
{
char gradeMark = 0;
if (finalMark >=80)
System.out.println("Grade A");
if ((finalMark >=70) && (finalMark < 80))
System.out.println("Grade B");
if ((finalMark >=60) && (finalMark < 70))
System.out.println("Grade C");
if ((finalMark >= 50) && (finalMark < 60))
System.out.println("Grade D");
if (finalMark < 50)
System.out.println("Grade F");

return gradeMark;
}
}

Please wrap code tags around your code.
...and, then feel free to tell the forum what the problem is, or what question you have, including all error messages you may be getting.

----jGRASP exec: javac -g S10122534c_Assignment.java

S10122534c_Assignment.java:29: error: '.class' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
^
S10122534c_Assignment.java:29: error: ';' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
^

S10122534c_Assignment.java:29: error: <identifier> expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
^
S10122534c_Assignment.java:29: error: illegal start of expression
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

S10122534c_Assignment.java:29: error: not a statement
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
^
S10122534c_Assignment.java:29: error: ';' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
^

S10122534c_Assignment.java:29: error: '.class' expected
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ϼ§ÏS10122534c_Assignment.java:29: error: ';' expected
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ϼ§ÏS10122534c_Assignment.java:29: error: <identifier> expected
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ϼ§ÏS10122534c_Assignment.java:29: error: illegal start of expression
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ϼ§ÏS10122534c_Assignment.java:29: error: ';' expected
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ϼ§ÏS10122534c_Assignment.java:29: error: not a statement
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ϼ§ÏS10122534c_Assignment.java:29: error: ';' expected
ÏÏ§Ï count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);
ÏÏ§Ï ^
ÏϧÏ7 errors

well you got the last part of what i said. Try to attack the first one( please edit your post and wrap code tags around your code) and one of the inner two(tell what your problme is or ask a question)... although i *could* read all that code looking text and the error messages, I simply wont. :/ Sorry man/woman/child/other, make it easy for me(us) to help you and it will be a happy day for both(all) of us.

S10122534c_Assignment.java:29: error: '.class' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

S10122534c_Assignment.java:29: error: ';' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark)

S10122534c_Assignment.java:29: error: <identifier> expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

S10122534c_Assignment.java:29: error: illegal start of expression
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

S10122534c_Assignment.java:29: error: ';' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

S10122534c_Assignment.java:29: error: not a statement
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

S10122534c_Assignment.java:29: error: ';' expected
count = initialization( name, int[] caMark, int[] ctMark, int[] asgMark);

7 errors

i have to display the results of all students
Display the students who have failed
add a new student
update assignment mark of a student
exit

this is the table

Pasting your assignment instructions is a bit far off from a question. I still don't know how to help you, just how to write your program for you. Which is not going to happen. ...and to fix your first post, highlight all of your code and click the button to wrap code tags around selected text.

import java.util.Scanner;

public class S10122534c_Assignment
{
public static void main(String[] args)
{
final int MAXSIZE = 50; // maximum number of students
String[] name = new String[MAXSIZE]; // array to store the names of the students
double[] caMark = new double[MAXSIZE]; // array to store the Continuous Assessment marks
double[] ctMark = new double[MAXSIZE]; // array to store the Common Test marks
double[] asgMark = new double[MAXSIZE]; // array to store the Assignment marks
double[] finalMark = new double [MAXSIZE]; // array to store the Final marks
int count = 0;
Scanner input = new Scanner(System.in);
// initialize the array with students
count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark); They say must '.class' expected and <identifier> epected
int choice;
finalMark = calculateFinalMark(count,caMark, ctMark, asgMark);
do
{
choice = input.nextInt();
switch (choice)
{ case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break;
case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break;
case 3: addNewStudent(count);break;
case 4: updateMarks(asgMark, count);break;
case 5: exit();break;
default:System.out.print("Thank you.");
}
}while (choice != 0);

}
// method to initialize the arrays with students
public static int initialization(String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark)
{
namer [0] = "Agnes Tan";
caMark [0] = 75;
ctMark [0] = 68;
asgMark [0] = 82;

name [1] = "Benny Ong";
caMark [1] = 66;
ctMark [1] = 30;
asgMark [1] = 35;

name [2] = "Denise Ng";
caMark[2] = 55;
ctMark [2] = 42;
asgMark [2] = 50;

name [3] = "Jimmy Tay";
caMark [3] = 80;
ctMark [3] = 76;
asgMark[3] = 82;

name [4] = "Evelyn Low";
caMark [4] = 70;
ctMark [4] = 60;
asgMark [4] = 65;

return 5;

}
public static void displayMenue()
{
String[] nameArr; int[] caMarkArr; int[] ctMarkArr; int[] asgMarkArr; int[] finalMarkArr;
{
System.out.println ("MENUE");
System.out.println ("========================================");
System.out.println (" [1]. Display the results of all students");
System.out.println (" [2]. Display the students who have failed");
System.out.println (" [3]. Add a new student");
System.out.println (" [4]. Update assignment mark of a student");
System.out.println (" [0]. Exit");
System.out.println ("Enter your option: _____ ");
System.out.println ("=========================================");
}
}
public static void displayStudentResults(String[] nameArr, int[] caMarkArr, int[] ctMarkArr, int[] asgMarkArr, int[] finalMarkArr)
{ int [] numArr = new int[50];
System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE");
for (int i=0; i<numArr.length; i++)
{ System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]);
numArr[i]=i+1;
}
}
//Calculate Final marks to compute whether the student has passed & to know the grades
public static double calculateFinalMarks (int count, double[] caMark, double[] ctMark, double[] asgMark)
{
int a = count;
finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]);
System.out.print(finalMark);
count++;
return finalMark;
}
public static void displayFailedStudents (String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark)
{
System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE");
for (int l=0; l<count; l++)
{
if (finalMark < 50)
System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]);
}
}
public static void addNewStudent(int count)
{
System.out.println("Option 3: Add New Student");
System.out.println("Enter Student Name: ");
String name = input.next();
System.out.println("Enter CA Marks: ");
double caMarks = input.nextDouble();
System.out.println("Enter CT Marks: ");
double ctMarks = input.nextDouble();
System.out.println("Enter ASG Marks: ");
double asgMarks = input.nextDouble();
System.out.println("One Student Added.");
count++;
}
public static void updateMarks(int count, double asgMark)
{ int i = count;
System.out.println("Option 4: Update Assignment Mark of a Student: ");
System.out.println("Enter the serial number of the student to update : ");
i = input.nextInt();
System.out.println("Enter new assignment mark : ");
double asgMark = input.nextDouble();
System.out.println("The assignment mark is updated. ");
asgMark[count-1] = asgMarks;
}
public static char gradeMark( double finalMark)
{
char gradeMark = 0;
if (finalMark >=80)
System.out.println("Grade A");
if ((finalMark >=70) && (finalMark < 80))
System.out.println("Grade B");
if ((finalMark >=60) && (finalMark < 70))
System.out.println("Grade C");
if ((finalMark >= 50) && (finalMark < 60))
System.out.println("Grade D");
if (finalMark < 50)
System.out.println("Grade F");

return gradeMark;
}
}

import java.util.Scanner;   public class S10122534c_Assignment { public static void main(String[] args) { final int MAXSIZE = 50; // maximum number of students String[] name = new String[MAXSIZE]; // array to store the names of the students double[] caMark = new double[MAXSIZE]; // array to store the Continuous Assessment marks double[] ctMark = new double[MAXSIZE]; // array to store the Common Test marks double[] asgMark = new double[MAXSIZE];// array to store the Assignment marks double[] finalMark = new double [MAXSIZE]; // array to store the Final marks int count = 0; Scanner input = new Scanner(System.in); // initialize the array with students count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark); int choice; finalMark = calculateFinalMark(count,caMark, ctMark, asgMark); do { choice = input.nextInt(); switch (choice) { case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break; case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break; case 3: addNewStudent(count);break; case 4: updateMarks(asgMark, count);break; case 5: exit();break; default:System.out.print("Thank you."); } }while (choice != 0);   } // method to initialize the arrays with students public static int initialization(String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark) { namer [0] = "Agnes Tan"; caMark [0] = 75; ctMark [0] = 68; asgMark [0] = 82;   name [1] = "Benny Ong"; caMark [1] = 66; ctMark [1] = 30; asgMark [1] = 35;   name [2] = "Denise Ng"; caMark[2] = 55; ctMark [2] = 42; asgMark [2] = 50;   name [3] = "Jimmy Tay"; caMark [3] = 80; ctMark [3] = 76; asgMark[3] = 82;   name [4] = "Evelyn Low"; caMark [4] = 70; ctMark [4] = 60; asgMark [4] = 65;   return 5;   } public static void displayMenue() { String[] nameArr; int[] caMarkArr; int[] ctMarkArr; int[] asgMarkArr; int[] finalMarkArr; { System.out.println ("MENUE"); System.out.println ("========================================"); System.out.println (" [1]. Display the results of all students"); System.out.println (" [2]. Display the students who have failed"); System.out.println (" [3]. Add a new student"); System.out.println (" [4]. Update assignment mark of a student"); System.out.println (" [0]. Exit"); System.out.println ("Enter your option: _____ "); System.out.println ("========================================="); } } public static void displayStudentResults(String[] nameArr, int[] caMarkArr, int[] ctMarkArr, int[] asgMarkArr, int[] finalMarkArr) { int [] numArr = new int[50]; System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int i=0; i<numArr.length; i++) { System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]); numArr[i]=i+1; } } //Calculate Final marks to compute whether the student has passed & to know the grades public static double calculateFinalMarks (int count, double[] caMark, double[] ctMark, double[] asgMark) { int a = count; finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]); System.out.print(finalMark); count++; return finalMark; } public static void displayFailedStudents (String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark) { System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int l=0; l<count; l++) { if (finalMark < 50) System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]); } } public static void addNewStudent(int count) { System.out.println("Option 3: Add New Student"); System.out.println("Enter Student Name: "); String name = input.next(); System.out.println("Enter CA Marks: "); double caMarks = input.nextDouble(); System.out.println("Enter CT Marks: "); double ctMarks = input.nextDouble(); System.out.println("Enter ASG Marks: "); double asgMarks = input.nextDouble(); System.out.println("One Student Added."); count++; } public static void updateMarks(int count, double asgMark) { int i = count; System.out.println("Option 4: Update Assignment Mark of a Student: "); System.out.println("Enter the serial number of the student to update : "); i = input.nextInt(); System.out.println("Enter new assignment mark : "); double asgMark = input.nextDouble(); System.out.println("The assignment mark is updated. "); asgMark[count-1] = asgMarks; } public static char gradeMark( double finalMark) { char gradeMark = 0; if (finalMark >=80) System.out.println("Grade A"); if ((finalMark >=70) && (finalMark < 80)) System.out.println("Grade B"); if ((finalMark >=60) && (finalMark < 70)) System.out.println("Grade C"); if ((finalMark >= 50) && (finalMark < 60)) System.out.println("Grade D"); if (finalMark < 50) System.out.println("Grade F");   return gradeMark; } }

import java.util.Scanner;   public class S10122534c_Assignment { public static void main(String[] args) { final int MAXSIZE = 50; // maximum number of students String[] name = new String[MAXSIZE]; // array to store the names of the students double[] caMark = new double[MAXSIZE]; // array to store the Continuous Assessment marks double[] ctMark = new double[MAXSIZE]; // array to store the Common Test marks double[] asgMark = new double[MAXSIZE];// array to store the Assignment marks double[] finalMark = new double [MAXSIZE]; // array to store the Final marks int count = 0; Scanner input = new Scanner(System.in); // initialize the array with students count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark); int choice; finalMark = calculateFinalMark(count,caMark, ctMark, asgMark); do { choice = input.nextInt(); switch (choice) { case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break; case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break; case 3: addNewStudent(count);break; case 4: updateMarks(asgMark, count);break; case 5: exit();break; default:System.out.print("Thank you."); } }while (choice != 0);   } // method to initialize the arrays with students public static int initialization(String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark) { namer [0] = "Agnes Tan"; caMark [0] = 75; ctMark [0] = 68; asgMark [0] = 82;   name [1] = "Benny Ong"; caMark [1] = 66; ctMark [1] = 30; asgMark [1] = 35;   name [2] = "Denise Ng"; caMark[2] = 55; ctMark [2] = 42; asgMark [2] = 50;   name [3] = "Jimmy Tay"; caMark [3] = 80; ctMark [3] = 76; asgMark[3] = 82;   name [4] = "Evelyn Low"; caMark [4] = 70; ctMark [4] = 60; asgMark [4] = 65;   return 5;   } public static void displayMenue() { String[] nameArr; int[] caMarkArr; int[] ctMarkArr; int[] asgMarkArr; int[] finalMarkArr; { System.out.println ("MENUE"); System.out.println ("========================================"); System.out.println (" [1]. Display the results of all students"); System.out.println (" [2]. Display the students who have failed"); System.out.println (" [3]. Add a new student"); System.out.println (" [4]. Update assignment mark of a student"); System.out.println (" [0]. Exit"); System.out.println ("Enter your option: _____ "); System.out.println ("========================================="); } } public static void displayStudentResults(String[] nameArr, int[] caMarkArr, int[] ctMarkArr, int[] asgMarkArr, int[] finalMarkArr) { int [] numArr = new int[50]; System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int i=0; i<numArr.length; i++) { System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]); numArr[i]=i+1; } } //Calculate Final marks to compute whether the student has passed & to know the grades public static double calculateFinalMarks (int count, double[] caMark, double[] ctMark, double[] asgMark) { int a = count; finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]); System.out.print(finalMark); count++; return finalMark; } public static void displayFailedStudents (String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark) { System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int l=0; l<count; l++) { if (finalMark < 50) System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]); } } public static void addNewStudent(int count) { System.out.println("Option 3: Add New Student"); System.out.println("Enter Student Name: "); String name = input.next(); System.out.println("Enter CA Marks: "); double caMarks = input.nextDouble(); System.out.println("Enter CT Marks: "); double ctMarks = input.nextDouble(); System.out.println("Enter ASG Marks: "); double asgMarks = input.nextDouble(); System.out.println("One Student Added."); count++; } public static void updateMarks(int count, double asgMark) { int i = count; System.out.println("Option 4: Update Assignment Mark of a Student: "); System.out.println("Enter the serial number of the student to update : "); i = input.nextInt(); System.out.println("Enter new assignment mark : "); double asgMark = input.nextDouble(); System.out.println("The assignment mark is updated. "); asgMark[count-1] = asgMarks; } public static char gradeMark( double finalMark) { char gradeMark = 0; if (finalMark >=80) System.out.println("Grade A"); if ((finalMark >=70) && (finalMark < 80)) System.out.println("Grade B"); if ((finalMark >=60) && (finalMark < 70)) System.out.println("Grade C"); if ((finalMark >= 50) && (finalMark < 60)) System.out.println("Grade D"); if (finalMark < 50) System.out.println("Grade F");   return gradeMark; } }

[codejava]
import java.util.Scanner;

public class S10122534c_Assignment
{
public static void main(String[] args)
{
final int MAXSIZE = 50; // maximum number of students
String[] name = new String[MAXSIZE]; // array to store the names of the students
double[] caMark = new double[MAXSIZE]; // array to store the Continuous Assessment marks
double[] ctMark = new double[MAXSIZE]; // array to store the Common Test marks
double[] asgMark = new double[MAXSIZE]; // array to store the Assignment marks
double[] finalMark = new double [MAXSIZE]; // array to store the Final marks
int count = 0;
}


{
Scanner input = new Scanner(System.in);
// initialize the array with students
count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark);
int choice;
finalMark = calculateFinalMark(count,caMark, ctMark, asgMark);
}


{

do

choice = input.nextInt();
switch (choice)
{
case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break;
case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break;
case 3: addNewStudent(count);break;
case 4: updateMarks(asgMark, count);break;
case 5: exit();break;
default:System.out.print("Thank you.");

}
}



{
while (choice != 0);


// method to initialize the arrays with students
public static int initialization(String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark)
{
namer [0] = "Agnes Tan";
caMark [0] = 75;
ctMark [0] = 68;
asgMark [0] = 82;

name [1] = "Benny Ong";
caMark [1] = 66;
ctMark [1] = 30;
asgMark [1] = 35;

name [2] = "Denise Ng";
caMark[2] = 55;
ctMark [2] = 42;
asgMark [2] = 50;

name [3] = "Jimmy Tay";
caMark [3] = 80;
ctMark [3] = 76;
asgMark[3] = 82;

name [4] = "Evelyn Low";
caMark [4] = 70;
ctMark [4] = 60;
asgMark [4] = 65;

return 5;

}
}

{
public static void displayMenue()

String[] nameArr; int[] caMarkArr; int[] ctMarkArr; int[] asgMarkArr; int[] finalMarkArr;
{
System.out.println ("MENUE");
System.out.println ("========================================");
System.out.println (" [1]. Display the results of all students");
System.out.println (" [2]. Display the students who have failed");
System.out.println (" [3]. Add a new student");
System.out.println (" [4]. Update assignment mark of a student");
System.out.println (" [0]. Exit");
System.out.println ("Enter your option: _____ ");
System.out.println ("=========================================");
}


{
public static void displayStudentResults(String[] nameArr, int[] caMarkArr, int[] ctMarkArr, int[] asgMarkArr, int[] finalMarkArr)
{ int [] numArr = new int[50];
System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE");
for (int i=0; i<numArr.length; i++)
{ System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]);
numArr[i]=i+1;
}
}
}

{
//Calculate Final marks to compute whether the student has passed & to know the grades
public static double calculateFinalMarks (int count, double[] caMark, double[] ctMark, double[] asgMark)
{
int a = count;
finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]);
System.out.print(finalMark);
count++;
return finalMark;
}

{
public static void displayFailedStudents (String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark)
{
System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE");
for (int l=0; l<count; l++)
{
if (finalMark < 50)
System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]);
}
}
}

{
public static void addNewStudent(int count)
{
System.out.println("Option 3: Add New Student");
System.out.println("Enter Student Name: ");
String name = input.next();
System.out.println("Enter CA Marks: ");
double caMarks = input.nextDouble();
System.out.println("Enter CT Marks: ");
double ctMarks = input.nextDouble();
System.out.println("Enter ASG Marks: ");
double asgMarks = input.nextDouble();
System.out.println("One Student Added.");
count++;
}
}
{
public static void updateMarks(int count, double asgMark)
{ int i = count;
System.out.println("Option 4: Update Assignment Mark of a Student: ");
System.out.println("Enter the serial number of the student to update : ");
i = input.nextInt();
System.out.println("Enter new assignment mark : ");
double asgMark = input.nextDouble();
System.out.println("The assignment mark is updated. ");
asgMark[count-1] = asgMarks;
}
}
{
public static char gradeMark( double finalMark)
{
char gradeMark = 0;
if (finalMark >=80)
System.out.println("Grade A");
if ((finalMark >=70) && (finalMark < 80))
System.out.println("Grade B");
if ((finalMark >=60) && (finalMark < 70))
System.out.println("Grade C");
if ((finalMark >= 50) && (finalMark < 60))
System.out.println("Grade D");
if (finalMark < 50)
System.out.println("Grade F");

return gradeMark;
}
}

[/code]

import java.util.Scanner;   public class S10122534c_Assignment { public static void main(String[] args) { final int MAXSIZE = 50; // maximum number of students String[] name = new String[MAXSIZE]; // array to store the names of the students double[] caMark = new double[MAXSIZE]; // array to store the Continuous Assessment marks double[] ctMark = new double[MAXSIZE]; // array to store the Common Test marks double[] asgMark = new double[MAXSIZE];// array to store the Assignment marks double[] finalMark = new double [MAXSIZE]; // array to store the Final marks int count = 0; Scanner input = new Scanner(System.in); // initialize the array with students count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark); int choice; finalMark = calculateFinalMark(count,caMark, ctMark, asgMark); do { choice = input.nextInt(); switch (choice) { case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break; case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break; case 3: addNewStudent(count);break; case 4: updateMarks(asgMark, count);break; case 5: exit();break; default:System.out.print("Thank you."); } }while (choice != 0);   } // method to initialize the arrays with students public static int initialization(String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark) { namer [0] = "Agnes Tan"; caMark [0] = 75; ctMark [0] = 68; asgMark [0] = 82;   name [1] = "Benny Ong"; caMark [1] = 66; ctMark [1] = 30; asgMark [1] = 35;   name [2] = "Denise Ng"; caMark[2] = 55; ctMark [2] = 42; asgMark [2] = 50;   name [3] = "Jimmy Tay"; caMark [3] = 80; ctMark [3] = 76; asgMark[3] = 82;   name [4] = "Evelyn Low"; caMark [4] = 70; ctMark [4] = 60; asgMark [4] = 65;   return 5;   } public static void displayMenue() { String[] nameArr; int[] caMarkArr; int[] ctMarkArr; int[] asgMarkArr; int[] finalMarkArr; { System.out.println ("MENUE"); System.out.println ("========================================"); System.out.println (" [1]. Display the results of all students"); System.out.println (" [2]. Display the students who have failed"); System.out.println (" [3]. Add a new student"); System.out.println (" [4]. Update assignment mark of a student"); System.out.println (" [0]. Exit"); System.out.println ("Enter your option: _____ "); System.out.println ("========================================="); } } public static void displayStudentResults(String[] nameArr, int[] caMarkArr, int[] ctMarkArr, int[] asgMarkArr, int[] finalMarkArr) { int [] numArr = new int[50]; System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int i=0; i<numArr.length; i++) { System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]); numArr[i]=i+1; } } //Calculate Final marks to compute whether the student has passed & to know the grades public static double calculateFinalMarks (int count, double[] caMark, double[] ctMark, double[] asgMark) { int a = count; finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]); System.out.print(finalMark); count++; return finalMark; } public static void displayFailedStudents (String[] name, int[] caMark, int[] ctMark, int[] asgMark, int[] finalMark) { System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int l=0; l<count; l++) { if (finalMark < 50) System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]); } } public static void addNewStudent(int count) { System.out.println("Option 3: Add New Student"); System.out.println("Enter Student Name: "); String name = input.next(); System.out.println("Enter CA Marks: "); double caMarks = input.nextDouble(); System.out.println("Enter CT Marks: "); double ctMarks = input.nextDouble(); System.out.println("Enter ASG Marks: "); double asgMarks = input.nextDouble(); System.out.println("One Student Added."); count++; } public static void updateMarks(int count, double asgMark) { int i = count; System.out.println("Option 4: Update Assignment Mark of a Student: "); System.out.println("Enter the serial number of the student to update : "); i = input.nextInt(); System.out.println("Enter new assignment mark : "); double asgMark = input.nextDouble(); System.out.println("The assignment mark is updated. "); asgMark[count-1] = asgMarks; } public static char gradeMark( double finalMark) { char gradeMark = 0; if (finalMark >=80) System.out.println("Grade A"); if ((finalMark >=70) && (finalMark < 80)) System.out.println("Grade B"); if ((finalMark >=60) && (finalMark < 70)) System.out.println("Grade C"); if ((finalMark >= 50) && (finalMark < 60)) System.out.println("Grade D"); if (finalMark < 50) System.out.println("Grade F");   return gradeMark; } }

i dun understand what you just said

public static int initialization(String[] name, double[] caMark, double[] ctMark, double[] asgMark)

is it this line?
What must it be?

Well I can see you are trying, so while you work on that I will give your code a once over in an ide for speed.

So I copy-pasted your code from post #16 into an ide. Here is what I see to start...

line15: The method initialization(String[], int[], int[], int[], int[]) in the type S10122534c_Assignment is not applicable for the arguments (String[], double[], double[], double[])
...you are not sending the method what it expects to get.

line17: The method calculateFinalMark(int, double[], double[], double[]) is undefined for the type S10122534c_Assignment
...you named the method calculateFinalMarks. Note that there is an 's' at the end where you defined the method, but no 's' at the end when you tried to use it. This specific mistake appears many times in your code. (Where a variable sometimes has an s on the end, and sometimes does not)

line98: your code as follows:

public static double calculateFinalMarks(int count, double[] caMark, double[] ctMark, double[] asgMark) { int a = count;	finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]); System.out.print(finalMark);	count++; return finalMark; }

Notice that you immediately hide your parameter named count by immediately declaring another variable within the method named count.

Take a good once over your code, and fix those bad variable names and see what you can come up with on the hidden parameter in your method posted above.
Repost your code after you have done that and I will look at any remaining errors you have at that point.

  // initialize the array with students	count = initialization(name,int[] caMark,int[] ctMark,int[] asgMark); int choice;	finalMark = calculateFinalMark(count,caMark, ctMark, asgMark); do { choice = input.nextInt(); switch (choice) { case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break; case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break; case 3: addNewStudent(count);break; case 4: updateMarks(asgMark, count);break; case 5: exit();break; default:System.out.print("Thank you."); } }while (choice != 0);   }

How do i go about to initialize the array with students

okkay i hav done the changes
Can you look through if i have done the correct thing..

/*================================================================================== * FSP 2012 Assignment * Student ID : S10122534C * Student Name : Leonard Laura Rachel M * Module Group : FI05 * * ==================================================================================*/   import java.util.Scanner;   public class S10122534c_Assignment { public static void main(String[] args) { final int MAXSIZE = 50; // maximum number of students String[] name = new String[MAXSIZE];// array to store the names of the students double[] caMark = new double[MAXSIZE];// array to store the Continuous Assessment marks double[] ctMark = new double[MAXSIZE];// array to store the Common Test marks double[] asgMark = new double[MAXSIZE];// array to store the Assignment marks double[] finalMark = new double [MAXSIZE]; // array to store the Final marks int count = 0;	Scanner input = new Scanner(System.in); // initialize the array with students	count = initialization(name,double[] caMark,double[] ctMark,double[] asgMark); int choice;	finalMark = calculateFinalMark(count,caMark, ctMark, asgMark); do { choice = input.nextInt(); switch (choice) { case 1: displayStudentResults(name, caMark, ctMark, asgMark, finalMark, count);break; case 2: diplayFailedStudents(name, caMark, ctMark, asgMark, finalMark, count);break; case 3: addNewStudent(count);break; case 4: updateMark(asgMark, count);break; case 5: exit();break; default:System.out.print("Thank you."); } }while (choice != 0);   } // method to initialize the arrays with students public static int initialization(String[] name, double[] caMark, double[] ctMark, double[] asgMark, double[] finalMark) { namer [0] = "Agnes Tan";	caMark [0] = 75;	ctMark [0] = 68;	asgMark [0] = 82;  	name [1] = "Benny Ong";	caMark [1] = 66;	ctMark [1] = 30;	asgMark [1] = 35;  	name [2] = "Denise Ng";	caMark[2] = 55;	ctMark [2] = 42;	asgMark [2] = 50;  	name [3] = "Jimmy Tay";	caMark [3] = 80;	ctMark [3] = 76;	asgMark[3] = 82;  	name [4] = "Evelyn Low";	caMark [4] = 70;	ctMark [4] = 60;	asgMark [4] = 65;   return 5;   } public static void displayMenu() { String[] nameArr; double[] caMarkArr; double[] ctMarkArr; double[] asgMarkArr; double[] finalMarkArr; { System.out.println ("MENU"); System.out.println ("========================================"); System.out.println (" [1]. Display the results of all students"); System.out.println (" [2]. Display the students who have failed"); System.out.println (" [3]. Add a new student"); System.out.println (" [4]. Update assignment mark of a student"); System.out.println (" [0]. Exit"); System.out.println ("Enter your option: _____ "); System.out.println ("========================================="); } } public static void displayStudentResults(String[] nameArr, double[] caMarkArr, double[] ctMarkArr, double[] asgMarkArr, double[] finalMarkArr) { int [] numArr = new int[50]; System.out.println("Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int i=0; i<numArr.length; i++) { System.out.println(nameArr[i] + caMarkArr[i] + ctMarkArr[i] + asgMarkArr[i] + finalMarkArr[i]); numArr[i]=i+1; } } //Calculate Final marks to compute whether the student has passed & to know the grades public static double calculateFinalMark(int count, double[] caMark, double[] ctMark, double[] asgMark) { int a = count;	finalMark = (0.4 * caMark[a]) + (0.3 * ctMark[a]) + (0.3 * asgMark[a]); System.out.print(finalMark);	count++; return finalMark; } public static void displayFailedStudents (String[] name, double[] caMark, double[] ctMark, double[] asgMark, double[] finalMark) { System.out.println("No" + "Student Name" + "CA" + "CT" + "ASG" + "FINAL" + "GRADE"); for (int l=0; l<count; l++) { if (finalMark < 50) System.out.print(name[l], caMark[l], ctMark[l], asgMark[l], finalMark[l]); } } public static void addNewStudent(int count) { System.out.println("Option 3: Add New Student"); System.out.println("Enter Student Name: "); String name = input.next(); System.out.println("Enter CA Marks: "); double caMarks = input.nextDouble(); System.out.println("Enter CT Marks: "); double ctMarks = input.nextDouble(); System.out.println("Enter ASG Marks: "); double asgMarks = input.nextDouble(); System.out.println("One Student Added."); count++; } public static void updateMark(int count, double asgMark) { int i = count; System.out.println("Option 4: Update Assignment Mark of a Student: "); System.out.println("Enter the serial number of the student to update : "); i = input.nextInt(); System.out.println("Enter new assignment mark : "); double asgMark = input.nextDouble(); System.out.println("The assignment mark is updated. "); asgMark[count-1] = asgMarks; } public static char gradeMark( double finalMark) { char gradeMark = 0; if (finalMark >=80) System.out.println("Grade A"); if ((finalMark >=70) && (finalMark < 80)) System.out.println("Grade B"); if ((finalMark >=60) && (finalMark < 70)) System.out.println("Grade C"); if ((finalMark >= 50) && (finalMark < 60)) System.out.println("Grade D"); if (finalMark < 50) System.out.println("Grade F");   return gradeMark; } }