Change1

src/App.java

+public class App {
+    public static void main(String[] args) throws Exception {
+        System.out.println("Hello, World!");
+        int daysPerWeek = 7;
+        int numberOfWeeks = 6;
+        int totalDays = daysPerWeek * numberOfWeeks;
+        System.out.println(totalDays);
+        boolean onHoliday = false;
+        double approxPI = 3.14;
+        double circumference = 2 * 3 * approxPI;
+        String greetingString = "Hello";
+        String introductionString = "My name is Inigo Montoya";
+        String reminderString = "You killed my father";
+        String threatString = "Prepare to die!";
+        System.out.println(greetingString + ", " + introductionString + ", " + reminderString + ", " + threatString);
+    }
+}