Java - Annotation Member Class Type

  1. HOME
  2. Java
  3. Annotation
  4. Annotation Member Class Type

Introduction

The following code shows how to use Class as annotation element value.

Demo

import java.io.IOException;

@interface TestCase {
  Class<? extends Throwable> willThrow() default Exception.class;
}

public class Main {
  // Must throw IOExceptionn
  @TestCase(willThrow = IOException.class)
  public static void testCase1() {
    // Code goes here
  }/*from w  w  w  .j a v a 2s .  c  o  m*/

  // We are not expecting any exception
  @TestCase()
  public static void testCase2() {
    // Code goes here
  }
}