Inheritance In Interfaces

 package com.company;

interface sampleInterface{
    void meth1();
    void meth2();
}
interface childSampleInterface extends sampleInterface{
    void meth3();
    void meth4();
}
class SampleClass implements childSampleInterface{
    public void meth1(){
        System.out.println("meth1");
    }
    public void meth2(){
        System.out.println("meth2");
    }
    public void meth3(){
        System.out.println("meth3");
    }
    public void meth4(){
        System.out.println("meth4");
    }

}

public class tuts {
    public static void main(String[] args) {
    SampleClass sc = new SampleClass();
    sc.meth1();
    sc.meth2();
    sc.meth3();
    sc.meth4();
    }
}