interface_inheritance.java

package com.company;

interface SampleInterface
{
 void meth1();
 void meth2();
}
interface ChildSampleInterface extends SampleInterface
{
 void meth3();
 void meth4();
}

class Mychild implements SampleInterface,ChildSampleInterface
{
 @Override
 public void meth1() {
 System.out.println("Meth1");
 }

 @Override
 public void meth2() {
 System.out.println("meth2");
 }

 @Override
 public void meth3() {
 System.out.println("Meth3");
 }

 @Override
 public void meth4() {
 System.out.println("Meth4");
 }
}
public class interface_inheritance {
 public static void main(String[] args) {
 Mychild c1=new Mychild();
 c1.meth1();
 c1.meth2();
 c1.meth3();
 c1.meth4();



 }
}