Correct executable flag

src/main/java/HelloWorld/Library.java

@@ -3,9 +3,16 @@
  */
 package HelloWorld;
 
+import java.util.HashMap;
+
 public class Library {
 	public static void main(String[] args) {
-        System.out.println("Hello World!");
+		String name = "This is a name";
+		
+		
+		Song thisSong = new Song("Catch the Wave",180,"kz");
+		
+		System.out.println(name);
     }
     public boolean someLibraryMethod() {
         return true;

src/main/java/HelloWorld/Song.java

@@ -0,0 +1,12 @@
+package HelloWorld;
+
+public class Song {
+	String name;
+	int duration;
+	String artist;
+	public Song(String name,int duration,String artist) {
+		this.name=name;
+		this.duration=duration;
+		this.artist=artist;
+	}
+}