把test.java救回来了

实验7/src/task1/HelloCollections.java

@@ -1,12 +1,12 @@
-//HelloCollections.java
-package task1;
-
-import java.util.ArrayList;
-
-public class HelloCollections {
-    public ArrayList run() {
-        ArrayList<String> list = new ArrayList<>();
-        list.add("hello, world");
-        return list;
-    }
+//HelloCollections.java
+package task1;
+
+import java.util.ArrayList;
+
+public class HelloCollections {
+    public ArrayList run() {
+        ArrayList<String> list = new ArrayList<>();
+        list.add("hello, world");
+        return list;
+    }
 }

实验7/src/task1/test.java

@@ -0,0 +1,12 @@
+//test.java
+package task1;
+
+import java.util.ArrayList;
+
+public class test {
+    public static void main(String[] args) {
+        HelloCollections h1 = new HelloCollections();
+        ArrayList a1 = h1.run();
+        System.out.println(a1);
+    }
+}