Java Reflection Method get public methods

// Show public methods.
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;

public class Main {
  public static void main(String args[]) {
    try {//from  ww w  . jav  a  2 s.c om
      A a = new A();
      Class<?> c = a.getClass();
      System.out.println("Public Methods:");
      Method methods[] = c.getDeclaredMethods();
      for (int i = 0; i < methods.length; i++) {
        int modifiers = methods[i].getModifiers();
        if (Modifier.isPublic(modifiers)) {
          System.out.println(" " + methods[i].getName());
        }
      }
    } catch (Exception e) {
      System.out.println("Exception: " + e);
    }
  }
}

class A {
  public void a1() {
  }

  public void a2() {
  }

  protected void a3() {
  }

  private void a4() {
  }
}