From 654d04b2d629b544ecc52619b970a884fdb2e623 Mon Sep 17 00:00:00 2001
From: xuxin <840198532@qq.com>
Date: Sat, 8 Aug 2026 09:42:23 +0800
Subject: [PATCH] =?UTF-8?q?s-day06-=E7=BA=BF=E7=A8=8B=E6=B1=A0=E7=9A=84?=
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---
 .../src/com/inmind/threadpool10/Demo13.java   | 31 +++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 s-day06/src/com/inmind/threadpool10/Demo13.java

diff --git a/s-day06/src/com/inmind/threadpool10/Demo13.java b/s-day06/src/com/inmind/threadpool10/Demo13.java
new file mode 100644
index 0000000..5cbf318
--- /dev/null
+++ b/s-day06/src/com/inmind/threadpool10/Demo13.java
@@ -0,0 +1,31 @@
+package com.inmind.threadpool10;
+
+import java.util.concurrent.ExecutorService;
+import java.util.concurrent.Executors;
+
+/*
+    22.线程池的创建--方式二
+    Executors的静态方法：
+    1.static ExecutorService newFixedThreadPool(int nThreads) 创建一个固定线程的线程池
+    2.static ExecutorService newSingleThreadExecutor() 创建一个只有一个线程的线程池，如果该线程出现异常，那么线程池主动创建一个新的替代
+    3.static ExecutorService newCachedThreadPool() 创建出随任务增加而增加线程的线程池，如果一个线程执行任务之后空闲了60s，这个线程就会被回收
+
+注意：在实际开发中，不推荐使用Executors来创建线程池，工具类创建线程的底层其实就是ThreadPoolExecutor构造方法，只不过参数不同。
+咱们的线程池的参数，要根据不同的业务来动态调整（而不是写死）
+ */
+public class Demo13 {
+    public static void main(String[] args) {
+        ExecutorService threadpool = Executors.newFixedThreadPool(3);
+        //创建10个任务并执行
+        //创建任务交给线程池处理
+        Task task = new Task();
+        threadpool.execute(task);
+        threadpool.execute(task);
+        threadpool.execute(task);//3个核心线程都已经被占用，给4个任务队列，排队
+
+
+        threadpool.shutdown();
+
+        System.out.println("程序结束");
+    }
+}