diff --git a/other/java/examples/src/main/java/com/seaweedfs/examples/UnzipFile.java b/other/java/examples/src/main/java/com/seaweedfs/examples/ExampleReadFile.java
similarity index 97%
rename from other/java/examples/src/main/java/com/seaweedfs/examples/UnzipFile.java
rename to other/java/examples/src/main/java/com/seaweedfs/examples/ExampleReadFile.java
index 12eab1a2c..bd73df802 100644
--- a/other/java/examples/src/main/java/com/seaweedfs/examples/UnzipFile.java
+++ b/other/java/examples/src/main/java/com/seaweedfs/examples/ExampleReadFile.java
@@ -9,7 +9,7 @@ import java.io.InputStream;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
-public class UnzipFile {
+public class ExampleReadFile {
 
     public static void main(String[] args) throws IOException {
 
diff --git a/other/java/examples/src/main/java/com/seaweedfs/examples/WatchFiles.java b/other/java/examples/src/main/java/com/seaweedfs/examples/ExampleWatchFileChanges.java
similarity index 98%
rename from other/java/examples/src/main/java/com/seaweedfs/examples/WatchFiles.java
rename to other/java/examples/src/main/java/com/seaweedfs/examples/ExampleWatchFileChanges.java
index e489cb3b1..72c572d31 100644
--- a/other/java/examples/src/main/java/com/seaweedfs/examples/WatchFiles.java
+++ b/other/java/examples/src/main/java/com/seaweedfs/examples/ExampleWatchFileChanges.java
@@ -7,7 +7,7 @@ import java.io.IOException;
 import java.util.Date;
 import java.util.Iterator;
 
-public class WatchFiles {
+public class ExampleWatchFileChanges {
 
     public static void main(String[] args) throws IOException {
 
diff --git a/other/java/examples/src/main/java/com/seaweedfs/examples/WriteFile.java b/other/java/examples/src/main/java/com/seaweedfs/examples/ExampleWriteFile.java
similarity index 97%
rename from other/java/examples/src/main/java/com/seaweedfs/examples/WriteFile.java
rename to other/java/examples/src/main/java/com/seaweedfs/examples/ExampleWriteFile.java
index b0bd54997..228a3c0b7 100644
--- a/other/java/examples/src/main/java/com/seaweedfs/examples/WriteFile.java
+++ b/other/java/examples/src/main/java/com/seaweedfs/examples/ExampleWriteFile.java
@@ -9,7 +9,7 @@ import java.io.InputStream;
 import java.util.zip.ZipEntry;
 import java.util.zip.ZipInputStream;
 
-public class WriteFile {
+public class ExampleWriteFile {
 
     public static void main(String[] args) throws IOException {