What is default Keyword in Java

The default keyword is used inside switch block to mark a default case.

Example of default keyword in switch block

Used to specify a default case, this runs when no matching case is being found.
It is placed in the end of the switch block and it doesn’t require break statement.
If there is matching case found then the default case doesn’t execute.

In the following example, we are demonstrating the use of default keyword in switch-case block.

public class JavaExample {
  public static void main(String[] args) {
    int num = 15;
    switch (num) {
      case 10:
        System.out.println("Execute this if num is 10");
        break;
      case 11:
        System.out.println("Execute this if num is 11");
        break;
      default:
        System.out.println("Execute this if num is neither 10 or 11");
    }
  }
}

Output:

Execute this if num is neither 10 or 11

Example of default keyword in switch block

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