public class Main { public static String getPackageName(Class c) {
String fullyQualifiedName = c.getName(); int lastDot = fullyQualifiedName.lastIndexOf('.'); if (lastDot == -1) { return "";
} return fullyQualifiedName.substring(0, lastDot);
}
public static void main(String[] args) {
System.out.println(getPackageName(java.awt.Frame.class));
}
}