完成w1任务：添加HelloWorld.java

1 month ago · 1f7f846470
1 changed files with 5 additions and 0 deletions
--- a/w1/HelloWorld.java
+++ b/w1/HelloWorld.java
@ -0,0 +1,5 @@
+public class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello, World!");
+    }
+}