Created Lab3 module

Lab3/src/main/java/org/lumijiez/Main.java

@@ -0,0 +1,19 @@
+package org.lumijiez;
+
+// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
+// then press Enter. You can now see whitespace characters in your code.
+public class Main {
+    public static void main(String[] args) {
+        // Press Alt+Enter with your caret at the highlighted text to see how
+        // IntelliJ IDEA suggests fixing it.
+        System.out.print("Hello and welcome!");
+
+        // Press Shift+F10 or click the green arrow button in the gutter to run the code.
+        for (int i = 1; i <= 5; i++) {
+
+            // Press Shift+F9 to start debugging your code. We have set one breakpoint
+            // for you, but you can always add more by pressing Ctrl+F8.
+            System.out.println("i = " + i);
+        }
+    }
+}