Get full package name : Package « Reflection « Java Tutorial

1. Java Tutorial
2. Reflection
3. Package

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));
  }
}