摘要:
1.USBpackage com.yfs.javase;public interface USB { //定义规范 public void read(); public void write();}2.UDisk读写package com.yfs.javase;public class ... 阅读全文
摘要:
1.抽象类package com.yfs.javase;//信模板public abstract class Templater { public abstract String toName() ; public abstract String fromName(); public abstra... 阅读全文
摘要:
package com.yfs.javase;public class ParamDemo { public static void main(String[] args) { int a = 3, b = 5; change(a,b); System.out.println("a = " +... 阅读全文