WorldInEye的博客

/** 模拟双色球案例 准备相关变量 1.用户选择是机选还是手选 2.接受用户选号（6红，1蓝） 3.生成系统号码（6红，1蓝） 3.比较系统号码和用户号码，记录个数 5.验证是否中奖 6.系统号码排序 7.公布结果*/import java.util.Scanner;import java.util.Arrays;im

public class Homework01 { public static void main(String[] args) throws IOException { copyDir(new File("d:/io"), new File("c:/def")); } public static void copyDir(File src, File dest) throws

import java.util.concurrent.locks.Lock;import java.util.concurrent.locks.ReentrantLock;/*银行有一个账户。有两个储户分别向同一个账户存3000元，每次存1000，存3次。每次存完打印账户余额。注意：效果要是交替打印！(多线程实现)*/class cun implements Runnable{ in

Random rd = new Random(); List list = new ArrayList(); while(list.size()!=6){ int num = rd.nextInt(6); if(!list.contains(num)){ list.add(num);

import java.util.HashMap;import java.util.Map.Entry;import java.util.Set;/*打印出字符串"abbbbbccccdddee"中每个字符出现的次数*/public class Homework01 { public static void main(String[] args) { HashMap <

import java.util.Scanner;public class shopping{ public static void main(String[] args){ System.out.println("请输入单价："); Scanner s = new Scanner(System.in); double price=s.ne

import java.util.Scanner;import java.util.Random;public class test07{ public static void main(String[] args){ int [] nums = new int[5]; int len = nums.length; Random r = n

class mm{ public static void main(String[] args){ int[] num = {12,3,54,67,88,34}; int max = max(num); int min = min(num); System.out.println("数列中的最大的值是："+max);

import java.util.Scanner;public class star{ public static void main(String[] args){ System.out.println("请输入要打印的星星的行数"); Scanner input = new Scanner(System.in); int num = i

public class test03{ public static void main(String[] args){ boolean bool = isRunYear(2008); if(bool){ System.out.println("是闰年"); }else{ System.out.p

1.冒泡排序public class BubbleSort{ public static void main(String[] args){ int[] nums = {34,4,56,17,90,65}; for(int i=0;i<nums.length-1;i++){ for(int j=0;j<nums.length-1-i;

import java.util.*;class test03{ public static void main(String[] args){ int score = 0; for(int i=1;i<=5;i++){ System.out.println("这是第"+i+"轮"); Scanner sr =