Can a Java interface have method with body ?

Can a Java interface have method with body ?

Yes, It is possible in Java 8 , but not in earlier Java versions.

Java 8 allows to define 2 kind of methods with body in the interfaces : 

  1. default method : To add default implementation by using "default " keyword

  2. static methods : defined using "static" keyword and can be called directly by interface name

package com.genius;

interface MyInterface{ 

  abstract void add();

  default void display(){

    System.out.println("default method of interface");

  }

  public static void show(){

    System.out.println("static method of interface");

  }

}