Java - Logical Operators

The following programs are simple examples which demonstrate the logical operators. Copy and paste the following Java programs as Test.java file, and compile and run the programs −

Example 1

In this example, we're creating two variables a and b and using logical operators. We've performed a logical AND operation and printed the result.

public class Test {

   public static void main(String args[]) {
      boolean a = true;
      boolean b = false;

      System.out.println("a && b = " + (a&&b));
   }
}

Output

a && b = false

Example 2

In this example, we're creating two variables a and b and using logical operators. We've performed a logical OR operation and printed the result.

public class Test {

   public static void main(String args[]) {
      boolean a = true;
      boolean b = false;

      System.out.println("a || b = " + (a||b) );
   }
}

Output

a || b = true

Example 3

In this example, we're creating two variables a and b and using logical operators. We've performed a logical Negate operation and printed the result.

public class Test {

   public static void main(String args[]) {
      boolean a = true;
      boolean b = false;
	  
      System.out.println("!(a && b) = " + !(a && b));
   }
}

Output

!(a && b) = true