first trial

src/Main.java

@@ -0,0 +1,10 @@
+//TIP To <b>Run</b> code, press <shortcut actionId="Run"/> or
+// click the <icon src="AllIcons.Actions.Execute"/> icon in the gutter.
+public class Main {
+    public static void main(String[] args) {
+        //TIP Press <shortcut actionId="ShowIntentionActions"/> with your caret at the highlighted text
+        // to see how IntelliJ IDEA suggests fixing it.
+        System.out.println("OS Name : "+System.getProperty("os.name"));
+        System.out.println("OS Version : "+System.getProperty("os.version"));
+    }
+}