Hello world

src/Global.java

+public class Global {
+}

src/Main.java

+public class Main {
+	
+	public static void main(String[] args) {
+		System.out.println("Hello world!");
+	}
+	
+}

src/RR.java

+public class RR {
+}

src/SRTF.java

+public class SRTF {
+}

src/Task.java

+public class Task {
+}