Multi Super Interfaces : Interface and Abstract Class « Language Basics « Java

1. Java
2. Language Basics
3. Interface and Abstract Class

Multi Super Interfaces

public class MultiSuperInterfaces {
  public interface Marker extends java.io.Serializable, java.rmi.Remote,
      java.lang.Runnable {
  }

  public class Marked implements Marker {
    public void run() {
      // needed for Runnable
    }
  }

  public static void main(String[] args) {
    new MultiSuperInterfaces().print();
  }

  void print() {
    Object o = new Marked();
    if (o instanceof java.io.Serializable) {
      System.out.println("Is Serializable");
    }
    if (o instanceof java.rmi.Remote) {
      System.out.println("Is Remote");
    }
    if (o instanceof java.lang.Runnable) {
      System.out.println("Is Runnable");
    }
  }
}
           
       

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