摘要： package com.day20; public class Test { public static void main(String[] args) { Demo01 site = new Demo01(); Thread person1= new Thread(site,"桃跑跑"); Thread person2= new Th... 阅读全文

摘要： package com.day19; public class Test { public static void main(String[] args) { Thread thread = new Thread(new Demo01()); thread.setPriority(Thread.MAX_PRIORITY); thread.... 阅读全文

摘要： package com.day18; public class Test { public static void main(String[] args) { Demo02 youngMan = new Demo02("年轻人",500,1); Demo02 oldMan = new Demo02("老年人",1500,1); Syst... 阅读全文

摘要： package com.day18; public class Demo01 { public static void main(String[] args) { //创建线程对象 Mythread thread1 = new Mythread(); Mythread thread2 = new Mythread(); ... 阅读全文

摘要： package com.day17; public class Member { //姓名 会员卡号 密码 会员积分 private String name; private int cardId; private String password; private int score; //开卡日期 private Strin... 阅读全文

摘要： package com.day16; import java.io.*; public class Demo03 { public static void main(String[] args){ DataInputStream dis=null; DataOutputStream dos=null; Fi... 阅读全文

摘要： package com.day16; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.File; import java.io.FileInputStream; import java.io.FileOutputStream; import java.io.FileReader; impo... 阅读全文

摘要： package com.day16; import java.io.*; public class Demo01 { public static void main(String[] args) { Demo01 de=new Demo01(); File file=new File("D://mybook\\test.txt"); /... 阅读全文

摘要： 英文字母：·字节数 : 1;编码：GB2312字节数 : 1;编码：GBK字节数 : 1;编码：GB18030字节数 : 1;编码：ISO-8859-1字节数 : 1;编码：UTF-8字节数 : 4;编码：UTF-16字节数 : 2;编码：UTF-16BE字节数 : 2;编码：UTF-16LE中文汉 阅读全文

摘要： package com.day14; public class Demo01 { public static char[] demo01(){ String i = "1234567890"; //String r ="1"; String word=i; char[] c=word.toCharArray(); ... 阅读全文