C++ BOOLEAN DATATYPES Boolean Types A boolean data type is declared with the bool keyword and can only take the values true or false. When the value is returned, true = 1 and false = 0.
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C++ BOOLEAN DATATYPES Boolean Types A boolean data type is declared with the bool keyword and can only take the values true or false. When the value is returned, true = 1 and false = 0.
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C++ CHARACTER DATATYPES Character Types The char data type is used to store a single character.The character must be surrounded by single quotes, like 'A' or 'c':
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Alternatively, ifyou are familiar with ASCII, you can use ASCII values to display certain characters:
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C++ OPERATORS C++ Operators Operators are used to perform operations on variables and values. In the example below, we use the + operator to add together two values: Although the + operator is often used to add together two values, like in the example above, it can also be used to add together a variable and a value, or a variable and another variable:
C++ dividesthe operators into the following groups: Arithmetic operators Assignment operators Comparison operators Logical operators Bitwise operators
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C++ ASSIGNMENT OPERATORS Assignment operators are used to assign values to variables. In the example below, we use the assignment operator (=) to assign the value 10 to a variable called x:
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A LIST OFALL ASSIGNMENT OPERATORS: Operator Example Same As Try it = x = 5 x = 5 += x += 3 x = x + 3 -= x -= 3 x = x - 3 *= x *= 3 x = x * 3 /= x /= 3 x = x / 3 %= x %= 3 x = x % 3 &= x &= 3 x = x & 3 |= x |= 3 x = x | 3 ^= x ^= 3 x = x ^ 3 >>= x >>= 3 x = x >> 3 <<= x <<= 3 x = x << 3
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COMPARISON OPERATORS Comparisonoperators are used to compare two values (or variables).This is important in programming, because it helps us to find answers and make decisions. The return value of a comparison is either 1 or 0, which means true (1) or false (0). These values are known as Boolean values, and you will learn more about them in the Booleans and If..Else chapter. In the following example, we use the greater than operator (>) to find out if 5 is greater than 3:
A LIST OFALL COMPARISON OPERATORS: Operator Name Example Try it == Equal to x == y != Not equal x != y > Greater than x > y < Less than x < y >= Greater than or equal to x >= y <= Less than or equal to x <= y
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LOGICAL OPERATORS Aswith comparison operators, you can also test for true (1) or false (0) values with logical operators. Logical operators are used to determine the logic between variables or values: Operator Name Description Example Try it && Logical and Returns true if both statements are true x < 5 && x < 10 || Logical or Returns true if one of the statements is true x < 5 || x < 4 ! Logical not Reverse the result, returns false if the result is true !(x < 5 && x < 10)
