diff --git a/多线程编程/MultiThread/src/main/java/com/cpic/xim/App.java b/多线程编程/MultiThread/src/main/java/com/cpic/xim/App.java
index f75c26f..8c983bb 100644
--- a/多线程编程/MultiThread/src/main/java/com/cpic/xim/App.java
+++ b/多线程编程/MultiThread/src/main/java/com/cpic/xim/App.java
@@ -12,7 +12,7 @@ package com.cpic.xim;
 import com.cpic.xim.utils.MyThread;
 import com.cpic.xim.utils.MyWorkingJob;
 
-public class App 
+public class App
 {
     public static void main( String[] args )
     {
@@ -22,6 +22,6 @@ public class App
         workThread.start();
         jobThread.start();
 
-        System.out.println( "我是主线程！" + String.valueOf(Thread.currentThread().getId()) );
+        System.out.println( "我是主线程！" + String.valueOf( Thread.currentThread().threadId() ) );
     }
 }
diff --git a/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyThread.java b/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyThread.java
index adf0a62..1077cde 100644
--- a/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyThread.java
+++ b/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyThread.java
@@ -16,6 +16,6 @@ public class MyThread extends Thread
     {
         super.run();
 
-        System.out.println("我是工作线程:" + String.valueOf(Thread.currentThread().getId()) );
+        System.out.println("我是工作线程:" + String.valueOf(Thread.currentThread().threadId()) );
     }
 }
\ No newline at end of file
diff --git a/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyWorkingJob.java b/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyWorkingJob.java
index 9d5ab51..ce47481 100644
--- a/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyWorkingJob.java
+++ b/多线程编程/MultiThread/src/main/java/com/cpic/xim/utils/MyWorkingJob.java
@@ -15,6 +15,6 @@ public class MyWorkingJob implements Runnable
     @Override
     public void run()
     {
-        System.out.println("我是workingJob，ID是" + String.valueOf( Thread.currentThread().getId()));
+        System.out.println("我是workingJob，ID是" + String.valueOf( Thread.currentThread().threadId()));
     }
 } 
\ No newline at end of file