diff --git "a/docs/java/Java\347\250\213\345\272\217\350\256\276\350\256\241\351\242\230.md" "b/docs/java/Java\347\250\213\345\272\217\350\256\276\350\256\241\351\242\230.md"
index 46c9c16994b0bd5a7edcf024c0ce8f651636c448..6f41a9cfa810deafc14de5257e4a284bb769ef8d 100644
--- "a/docs/java/Java\347\250\213\345\272\217\350\256\276\350\256\241\351\242\230.md"
+++ "b/docs/java/Java\347\250\213\345\272\217\350\256\276\350\256\241\351\242\230.md"
@@ -73,10 +73,9 @@ public class MyStack {
 
     //TODO：返回栈顶元素并出栈
     private int pop() {
-        count--;
         if (count == -1)
             throw new IllegalArgumentException("Stack is empty.");
-
+        count--;
         return storage[count];
     }