Java Interview 基本概念

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1. abstract class

abstract class can have anything a normal class can have plus abstract method

public abstract class Test11 {

    public int a;

    private int b;

    public abstract void f1();

    public void f2() {

    }
}

 2. interface

only variable and abstract method,

can extends another interface,

cannot extends class or implement interface

public interface Inter2 extends Inter1 {
    public int a = 1;

    public abstract void f1();

    public void f2();
}

Java Interview 基本概念

标签：style   blog   color   ar   java   sp   div   on   log   

原文地址：http://www.cnblogs.com/phoenix13suns/p/4084383.html