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Java Operators

  • An operator is a symbol that the compiler to perform a specific operation on operands.
  • Example : a + b = c
  • In the above example, 'a' and 'b' are operands on which the '+' operator is applied.

  • Types of operators :

    1. Arithmetic Operators :

  • Arithmetic operators are used to perform mathematical operations such as addition, division, etc on expressions.
  • Arithmetic operators cannot work with Booleans.
  • % operator can work on floats and doubles.
  • Let x=7 and y=2

  • 2. Comparison Operators :

  • As the name suggests, these operators are used to compare two operands.
  • Let x=7 and y=2

  • 3.Logical Operators

  • These operators determine the logic in an expression containing two or more values or variables.
  • Let x = 8 and y =2

  • 4. Bitwise Operators

  • These operators perform the operations on every bit of a number.
  • Let x =2 and y=3. So 2 in binary is 100, and 3 is 011.

  • Precedence of operators

    The operators are applied and evaluated based on precedence. For example, (+, -) has less precedence compared to (*, /). Hence * and / are evaluated first. In case we like to change this order, we use parenthesis ().


    public class CWH_Ch2_Operators {
        public static void main(String[] args) {
            // 1. Arithmetic Operators
            int a = 4;
            int b = 6 % a; // Modulo Operator
            // 4.8%1.1 --> Returns Decimal Remainder
            // 2. Assignment Operators
            int b = 9;
            b *= 3;
            // 3. Comparison Operators
            // 4. Logical Operators
            System.out.println(64>5 && 64>98);
            System.out.println(64>5 || 64>98);
            // 5. Bitwise Operators
            //        10
            //        11
            //        ----
            //        10


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