开启两个线程，一个线程打印A～Z，一个线程打印1～52的数据

Posted 2022-06-11 ltb6w

 

开启两个线程，一个线程打印A～Z，一个线程打印1～52的数据

 

import java.util.concurrent.locks.Condition;
import java.util.concurrent.locks.Lock;
import java.util.concurrent.locks.ReentrantLock;

public class D20190803  

      private  char a=‘A‘;
      private Lock lock = new ReentrantLock();
      private Condition c_one=lock.newCondition();
      private Condition c_two=lock.newCondition();
      private static boolean flag=true;
    
      Thread letter=new Thread(new Runnable() 
          
           public void run() 
             
               for (int i=0;i<26;i++) 
                  
                 lock.lock();  
             
                   try 
                      
                    if(flag) 
                        
                        c_two.await();
                        
                    
                    
                     System.out.print("【"+a+"】");
                       
                       a++;
                    
                    Thread.sleep(100);
                    flag=true;
                    c_one.signal();
                    
                    
                 catch (InterruptedException e) 
                    
                    e.printStackTrace();
                finally 
                    
                    lock.unlock();
                
                     
               
               
           
      );
      
      
      Thread number=new Thread(new Runnable() 
          
           public void run() 
               
               for (int j=1;j<53;j++) 
                   
                   lock.lock();
                   
                   System.out.print(j+",");
                   
                   if(j%2==0 ) 
                      
                       try 
                           

                            Thread.sleep(100);
                            c_two.signal();
                            flag=false;
                              
                       
                        if(!flag) 
                            
                            c_one.await();
                        
                        
                        
            
                        
                     catch (InterruptedException e) 
                        
                        e.printStackTrace();
                    finally 
                        
                        lock.unlock();
                    
                           
                     
                             
                   
                   
                  
               
               
      );
     
    public static void main(String[] args) throws InterruptedException 
        
        D20190803 d=new D20190803();
        d.letter.start();
        Thread.sleep(1000);
        d.number.start();