Linked Questions

What is the difference between heap memory and string pool in Java? in this link , it is said that: String s1 = "Hello"; String s2 = new String("Hello"); s1 points to String Pool's location and s2 ...

I am not able to understand usage of intern method provider by String class. String s1 = "vivek"; //Stmt 1 String s2 = "vivek"; //Stmt 2 String s3 = s1.intern(); //Stmt 3 System.out.println(s1 == s2)...

Possible Duplicate: When should we use intern method of String? what is string interning? Please explain the inner workings of the following code: System.out.println(new String("ABC").intern()==...

Why i'm getting false in below statement. int x = 10; System.out.println("X="+x=="X="+x); //false If i'm right then after evaluation it will look like below statement.. System....

public static void main(String[] args) { String literalstr = "ABC"; String literalstr2 = "ABC"; String str = new String("ABC"); String str2 = new String("ABC"); if (literalstr == ...

How does Java decide when a new String should be created? I assume it depends on the specific JVM implementation/ compiler, but I thought the results of this test were interesting enough to ask the ...

What is the meaning of interned strings in context of JAVA? What is the intern() method in String class? I recently came across a code where "test" == "test" //output- true The argument for the ...

I am learning string implementations in java, got the following doubt while learning String s1 = "name1"; String s2 = "name1"; // both strings having same value; I know that, s1==s2 above ...

This two codes have defferent outputs and i don't know why. String a="abc"; String b="abc"; System.out.println(a==b + " " + a.equals(b)); The output is "true true" String a="abc"; String b=new ...

I read quite some answers about the String.intern() method but didn't quite get my answer. The intern method is a native method with the docs saying : Returns a canonical representation for the ...

I have learned that when you have assigned the value with strings, it use a string pools. So that, they are using same address String S1 = “Hello World”; String S2 = “Hello World”; String S3 = “...

Is having Java static final String (constants) will save heap space? Analyzing java heap dump of 1G showing up duplicate strings cost around 300M+ which means a lot for a app using max of 1G heap... ...

I write an object to a file and then I read it. Then I make "if" to compare object's arguments. For example "genreDescription" is "Action". if (genreDescription == "Action" ) { System.out.println(...

I wanted to ask about String and Reference variable, String name = "John" String str= "John" In the video it says that it will refer to the value "John" instead of ...

I wanted to clarify if I understand this correctly: == is a reference comparison, i.e. both objects point to the same memory location .equals() evaluates to the comparison of values in the objects