&& operator in Java with Examples

&& is a type of Logical Operator and is read as “AND AND” or “Logical AND“. This operator is used to perform “logical AND” operation, i.e. the function similar to AND gate in digital electronics.

One thing to keep in mind is the second condition is not evaluated if the first one is false, i.e. it has a short-circuiting effect. Used extensively to test for several conditions for making a decision.

Syntax:

Condition1 && Condition2

// returns true if both the conditions are true.

Below is an example to demonstrate && operator:

Example:

// Java program to illustrate
// logical AND operator

import java.util.*;

public class operators {
    public static void main(String[] args)
    {

        int num1 = 10;
        int num2 = 20;
        int num3 = 30;

        // find the largest number
        // using && operator
        if (num1 >= num2 && num1 >= num3)
            System.out.println(
                num1
                + " is the largest number.");
        else if (num2 >= num1 && num2 >= num3)
            System.out.println(
                num2
                + " is the largest number.");
        else
            System.out.println(
                num3
                + " is the largest number.");
    }
}

Output:

30 is the largest number.