题目
创建一个长度可由用户输入的数组，存入10-99不重复的数，要求用户输入在另外一个线程实现，并按升序输出；代码
Thread1类，负责输入import java.util.Scanner; public class Thread1 implements Runnable { @Override public void run() { Scanner scanner = new Scanner(System.in); while (true) { Test.num = scanner.nextInt(); if (Test.num >= 0 && Test.num <= 90) { break; } else { System.out.println("您输入的数据有误，请输入0-90之间的数据："); Test.num = scanner.nextInt(); } } } }
import java.lang.reflect.Array; import java.util.Random; public class Test { static int num = 0; public static void main(String[] args) throws InterruptedException { System.out.println("请输入数组长度，最大值为90："); //创建线程 Thread1 t = new Thread1(); Thread t1 = new Thread(t); t1.start(); //等待用户输入正确的元素个数，如果未输入正确的数，则一直休眠主线程，避免主线程继续执行下去导致数组异常 while(true) { if (t1.isAlive()) Thread.sleep(100); else break; } //定义数组 int[] array = new int[Test.num+1]; //存入数据 Random random = new Random(); int temp = 0; array[1] = random.nextInt(90) + 10; for (int i = 2; i <= Test.num; i++) { for (int j = 1; j < i; j++) { //判断随机数是否重复、是否为两位数 if (temp == array[j] || temp < 10 || temp > 99) { j = 1; temp = random.nextInt(90) + 10; } } array[i] = temp; } System.out.println("排序前的数组元素："); for (int i = 1; i <= Test.num; i++) { if (i % 10 == 0 || i == Test.num) System.out.println(array[i]); else System.out.print(array[i] + " "); } //直接插入法排序 for (int i = 2 ; i <= Test.num; i++) { if (array[i] < array[i-1]){ array[0] = array[i]; for (int j = i-1 ; array[0] < array[j]; j--) { array[j+1] = array[j]; array[j] = array[0]; } } } System.out.println("排序后的数组元素："); for (int i = 1; i <= Test.num; i++) { if (i % 10 == 0) System.out.println(array[i]); else System.out.print(array[i] + " "); } } }
结果
