diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git "a/2200022783\345\210\230\346\263\263\351\272\222/HelloWorld.java" "b/2200022783\345\210\230\346\263\263\351\272\222/HelloWorld.java"
new file mode 100644
index 0000000000000000000000000000000000000000..8b20ecc92588181857d8b042ad74a5b2a2fba835
--- /dev/null
+++ "b/2200022783\345\210\230\346\263\263\351\272\222/HelloWorld.java"
@@ -0,0 +1,5 @@
+public class HelloWorld {
+    public static void main(String[] args) {
+        System.out.println("Hello World!");
+    }
+}
\ No newline at end of file