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");
  }
}