编写10个线程，第一个线程从1加到10，第二个线程从11加到20 ..第十个线程从91加到100

Posted 2022-04-04 王六六的IT日常

不用syn关键字修饰

class ThreadTest extends Thread 
    int number;
    public ThreadTest(int n) 
        number=n;
    
    @Override
    public void run() 
        int count=0;
        for(int i=0;i<10;i++) 
            count+=number+i;
        

        System.out.println(number+"+"+(number+1)+"+...+"+(number+9)+"="+count);
    
    public static void main(String[] args) 
        for(int i=0;i<10;i++) 
            int k=i*10+1;
            ThreadTest tt=new ThreadTest(k);
            tt.start();
        
    

public class ThreadTest extends Thread 

    public static void main(String[] args) throws Exception 
        Thread[] threadList = new Thread[10];
        for (int i = 0; i < 10; i++) 
            threadList[i] = new ThreadTest(10 * i + 1);
            threadList[i].start();
        
        for (int i = 0; i < 10; i++) 
            threadList[i].join();
        
        System.out.println("十个线程和为：" + sum);
    

    private int stratNum;
    public static int sum;

    public ThreadTest(int startNum) 
        this.stratNum = startNum;
    
    public static void add(int num) 
        sum += num;
    
    public void run() 
        int sum = 0;
        for (int i = 0; i < 10; i++) 
            sum += stratNum + i;
        
        add(sum);