Update stack and queue.

2022-11-30 02:27:26 +08:00
parent 53cc651af2
commit 8669e06414
24 changed files with 705 additions and 186 deletions
--- a/codes/java/chapter_stack_and_queue/queue.java
+++ b/codes/java/chapter_stack_and_queue/queue.java
@@ -35,5 +35,6 @@ public class queue {

        /* 判断队列是否为空 */
        boolean isEmpty = queue.isEmpty();
+        System.out.println("队列是否为空 = " + isEmpty);
    }
 }