diff --git a/person4.java b/person4.java
deleted file mode 100644
index 52f1d30..0000000
--- a/person4.java
+++ /dev/null
@@ -1 +0,0 @@
-hello liming
\ No newline at end of file
diff --git a/person5.java b/person5.java
new file mode 100644
index 0000000..b490313
--- /dev/null
+++ b/person5.java
@@ -0,0 +1 @@
+hello xiaoming
\ No newline at end of file