Multi thread synchronous downloading of network pictures

//  practice Thread, Realize multi-threaded synchronous downloading of network pictures 
public class TestThread2 extends Thread {
    
    private String url; //  Network picture address 
    private String name; //  Save network picture file name 

    //  Constructors 
    public TestThread2(String url, String name) {
    
        this.url = url;
        this.name = name;
    }

    @Override
    public void run() {
    
        WebDownLoader webDownLoader = new WebDownLoader();
        webDownLoader.downLoader(url,name);
        System.out.println(" Downloaded the file named ：" + name);
    }

    public static void main(String[] args) {
    
        TestThread2 t1 = new TestThread2("https://img.alicdn.com/imgextra/i4/6000000001102/O1CN01HJ1Qxo1K0lCQcyutq_!!6000000001102-0-octopus.jpg","1.jpg");
        TestThread2 t2 = new TestThread2("https://gtms02.alicdn.com/tps/i2/TB10vPXKpXXXXacXXXXvKyzTVXX-520-280.jpg","2.jpg");
        TestThread2 t3 = new TestThread2("https://gtms03.alicdn.com/tps/i3/TB1gXd1JXXXXXapXpXXvKyzTVXX-520-280.jpg","3.jpg");

        t1.start();
        t2.start();
        t3.start();
    }
}
//  Downloader 
class WebDownLoader{
    
    public void downLoader(String url,String name){
    
        try {
    
            FileUtils.copyURLToFile(new URL(url),new File(name));
        } catch (IOException e) {
    
            e.printStackTrace();
            System.out.println("IO abnormal ,downLoader There is a problem with the method ");
        }
    }
}

Conclusion ： Threads don't have to execute immediately , from CPU To schedule