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package com.lddx.day0305;//接口 interfacepublic interface Person { //接口只能定义抽象方法; public abstract void drink(); //在接口中定义抽象方法,abstract关键字可以省略,在抽象类中不可省略; public void study(); }
package com.lddx.day0305;public class Student implements Person{ //子类Student 实现父接口Person public void drink() { System.out.print("drink warter!\n"); } public void study(){ System.out.print("study!\n"); } public static void main(String[] args) { Student stu=new Student(); stu.study(); }}
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