47 lines
1.0 KiB
Java
47 lines
1.0 KiB
Java
package chapter4.Example11;
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interface Animal {
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int ID = 1; // 接口默认为常量添加 public static final
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String NAME = "牧羊犬"; // 接口默认为常量添加 public static final
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// 定义抽象方法shout()，接口默认添加 public abstract
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void shout();
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// 静态方法，默认添加 public
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static int getID() {
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return Animal.ID;
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}
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// 抽象方法
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public void info();
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}
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interface Action {
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public void eat();
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}
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class Dog implements Animal, Action {
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public void eat() {
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System.out.println("喜欢吃骨头");
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}
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// 重写Animal接口中的抽象方法shout()
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public void shout() {
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System.out.println("汪汪...");
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}
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public void info() {
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System.out.println("名称：" + NAME);
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}
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}
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public class Example11 {
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public static void main(String[] args) {
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System.out.println("编号：" + Animal.getID());
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Dog dog = new Dog();
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dog.info();
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dog.shout();
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dog.eat();
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}
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}
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