Use of multithreaded executors

package com;

import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

public class Executor {

    public static void main(String[] args) {
        Executor executor = new Executor();
        executor.execution("typeOne");
    }

    private ExecutorService executor = Executors.newFixedThreadPool(50);

    // Asynchronous task 
    public void execution(String name){

        // Multithreading 
        Runnable run = new Runnable() {
            @Override
            public void run() {
                try {
                    //1、 Get the execution task type 
                    String taskId = name;
                    String taskName = name;
                    if(taskId!=null){
                        // Update task execution status 

                        //2、 Call the corresponding task type 
                        System.out.println(" Execute thread ");
                    }else{
                        throw new Exception(" Task execution failed ！");
                    }

                }catch (Exception e){
                    System.out.println(" Task execution failed ！");
                }finally {
                    // Update task execution end status 
                }
            }
        };
        // Threads execute 
        executor.execute(run);
        // close 
        executor.shutdown();
    }
}