paper.java

来自「Java程序设计大学教程程序源代码」· Java 代码 · 共 12 行

package jbookch4.infExample;

public class Paper implements Eatable, Writeable {
    public void eat() {
        System.out.println("撕纸吃,"+TASTELESS);
    }

    public void write() {
       System.out.println("在纸上书写：");
    }
}