Create a thread by thread pool

package thread;

import java.util.concurrent.*;

/**
 * @auto dh
 * @create 2020-03-29-0:04
 */
class Th0009 implements Callable<Integer>{
    private int sum=0;
    public Integer call(){
        for(int i=1;i<=100;i++){
            sum+=i;
        }
        return sum;
    }
}
class Th009 implements Runnable {
    public  void run() {
        for (int i = 0; i <= 100; i++) {
            if (i % 2 == 0) {
                System.out.println(Thread.currentThread().getName()+":"+i);
            }

        }
    }
}

public class Thread009 {
    static void main public (String [] args) { 

        Th009 Th009 new new TH = (); 
        Th0009 new new Th0009 T1 = (); 
//. 1, to create a thread pool object by Executors tools 
        ExecutorService executorService = Executors.newFixedThreadPool (12); 
// 2, execute () to process the Runnable interface 
        executorService.execute (TH); 
// Submit () for processing an interface Callable 
        a FutureTask, a FutureTask, Future new new = (T1); 
        Future future1 = ExecutorService.submit (Future); 

        the try { 
get // object by FutureTask () method returns the value of the thread 
            System.out.println ( "current thread return value:" + Future.get ()); 
        } the catch (InterruptedException E) { 
            e.printStackTrace (); 
        } catch (ExecutionException e) {
            e.printStackTrace (); 
        } 
//. 3, close the thread pool 
        executorService.shutdown (); 
    } 
}