To write a java program for handling Operators
Java Program 

import java.io.*;

public class operator
{
    public static void main(String args[])
    {
        int a = 12, b = 5;

        System.out.println("Arithmetic operator");
        System.out.println("a + b = " + (a + b));
        System.out.println("a - b = " + (a - b));
        System.out.println("a * b = " + (a * b));
        System.out.println("a / b = " + (a / b));

        System.out.println("Assignment operator");
        int var;
        var = a;
        System.out.println("var using = " + var);
        var += a;
        System.out.println("var using +=: " + var);

        System.out.println("Relational operator");
        System.out.println(a == b);
        System.out.println(a != b);

        System.out.println("Logical operator");
        System.out.println((5 > 3) && (8 > 5));

        int result1, result2;

        System.out.println("Value of a " + a);
        result1 = ++a;
        System.out.println("After increment " + result1);

        System.out.println("Unary operator");
        System.out.println("Value of b " + b);
        result2 = --b;
        System.out.println("After decrement " + result2);
    }
}