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  1. public class Main {
  2.  
  3. 	static class Foo {
  4. 		public void foo() {}
  5. 		private void privateFoo() {}
  6. 	}
  7.  
  8. 	static class Bar extends Foo {
  9. 		public void bar() {}
  10. 		private void privateBar() {}
  11. 	}
  12.  
  13. 	public static void main(String[] args) throws java.lang.Exception {
  14. 		printBoth("Main$Foo", "foo");
  15. 		printBoth("Main$Foo", "privateFoo");
  16. 		System.out.println();
  17. 		printBoth("Main$Bar", "foo");
  18. 		printBoth("Main$Bar", "privateFoo");
  19. 		printBoth("Main$Bar", "bar");
  20. 		printBoth("Main$Bar", "privateBar");
  21.  
  22. 	}
  23.  
  24. 	private static void printBoth(String clsName, String mtName) {
  25. 		printGetDeclaredMethod(clsName, mtName);
  26. 		printGetMethod(clsName, mtName);
  27. 	}
  28.  
  29. 	static void printGetDeclaredMethod(String clsName, String mtName) {
  30. 		try {
  31. 			System.out.println("getDeclaredMethod: " + Class.forName(clsName).getDeclaredMethod(mtName));
  32. 		} catch (Exception e) {
  33. 			System.out.println("getDeclaredMethod: " + e);
  34. 		}
  35. 	}
  36. 	static void printGetMethod(String clsName, String mtName) {
  37. 		try {
  38. 			System.out.println("getMethod:         " + Class.forName(clsName).getMethod(mtName));
  39. 		} catch (Exception e) {
  40. 			System.out.println("getMethod:         " + e);
  41. 		}
  42. 	}
  43. }
Success #stdin #stdout 0.08s 380160KB
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getDeclaredMethod: public void Main$Foo.foo()
getMethod:         public void Main$Foo.foo()
getDeclaredMethod: private void Main$Foo.privateFoo()
getMethod:         java.lang.NoSuchMethodException: Main$Foo.privateFoo()

getDeclaredMethod: java.lang.NoSuchMethodException: Main$Bar.foo()
getMethod:         public void Main$Foo.foo()
getDeclaredMethod: java.lang.NoSuchMethodException: Main$Bar.privateFoo()
getMethod:         java.lang.NoSuchMethodException: Main$Bar.privateFoo()
getDeclaredMethod: public void Main$Bar.bar()
getMethod:         public void Main$Bar.bar()
getDeclaredMethod: private void Main$Bar.privateBar()
getMethod:         java.lang.NoSuchMethodException: Main$Bar.privateBar()
https://ideone.com/veKNyU
language:
Java (HotSpot 12)
created:
11 years ago
visibility:
public

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