多线程练习（java）

 public class TestThread
 {
     public static void main(String[] args)
     {
         RandomNumber r=new RandomNumber();

         Thread1 t1=new Thread1(r);
         Thread2 t2=new Thread2(r);

         Thread thread1=new Thread(t1);
         Thread thread2=new Thread(t2);

         thread1.start();
         thread2.start();
     }
 }

 public class RandomNumber
 {
     public int i;
     public int num[];

     RandomNumber()
     {
         i=(int)(Math.random()*100)+11;
         num=new int[i];

         for (int j=0;j<i;j++)
         {
             num[j]=(int)(Math.random()*100);
         }
     }
 }

 //public class Thread1 extends Thread {
 public class Thread1 implements Runnable { 

     private int Thread1[];
     Thread1(RandomNumber rn)
     {
         //Thread1 = new int[rn.i];
         Thread1 = rn.num;
     }
     public void run()
     {
         for(int i=0; i<Thread1.length; i++)
         {
             for(int j=0; j<Thread1.length-i-1; j++)
             {
                 if(Thread1[j] > Thread1[j+1])
                 {
                     int mid = Thread1[j];
                     Thread1[j] = Thread1[j+1];
                     Thread1[j+1] = mid;
                 }
             }
         }
         for(int i=0; i<Thread1.length; i++)
         {
             System.out.println(Thread1[i]);
         }
         System.out.println("Thread1打印完成。");
     }
 }  

 import java.util.Arrays;  

 public class Thread2 implements Runnable {  

     private int Thread2[];
     Thread2(RandomNumber rn)
     {
        // Thread2 = new int[rn.num.length];
         Thread2 = rn.num;
     }  

   public void run()
   {
       Arrays.sort(Thread2);
       for (int i=0;i<Thread2.length;i++)
       {
           System.out.println(Thread2[i]);
       }
       System.out.println("Thread2打印完成");
   }
 }