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Thread: Interface Inheritance (Java Program): meaning of each line of the program?

  1. #1
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    Default Interface Inheritance (Java Program): meaning of each line of the program?

    Hi guys. I'm just preparing for my exam. help me to explain every line of this program:

    interface J {
        int j = 200;
        int j1();
    interface K {
        double k1();
    interface L extends J,K{
        boolean l1();
    class I implements L{
        public boolean l1() {
            return true;
        public int j1() {
            return 4;
        public double k1() {
            return 6.8;
    class InterfaceInheritance{
        public static void main(String[] g){
            I i=new I();

    Result :

    And My second question is how to create o class that implements the interface j and k. Then, call the method on a main program in class InterfaceInheritance.

    thanks for helping me prepare for the exam
    Last edited by Kifli; July 7th, 2012 at 08:09 AM.

  2. #2
    Administrator copeg's Avatar
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    Default Re: Interface Inheritance (Java Program): meaning of each line of the program?

    You will learn a lot more if you sit down and study the code, research what you don't understand. Asking someone else to explain this code is a vague request - what don't you understand about it? If you have a specific question, ask it.

    This thread has been cross posted here:


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    Last edited by copeg; July 8th, 2012 at 10:27 AM.

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