Reflection Java Book

String toString()
Returns the string representation of this Package.
Revised from Open JDK source code
public class Main {
public static void main(String[] args) {
Package pkg = Package.getPackage("java.lang");
System.out.println("Name: " + pkg.getName());
System.out.println("Implementation title: " + pkg.getImplementationTitle());
System.out.println("Implementation vendor: " + pkg.getImplementationVendor());
System.out.println("Implementation version: " + pkg.getImplementationVersion());
System.out.println("Specification title: " + pkg.getSpecificationTitle());
System.out.println("Specification vendor: " + pkg.getSpecificationVendor());
System.out.println("Specification version: " + pkg.getSpecificationVersion());
System.out.println("Sealed: " + pkg.isSealed());
System.out.println("Compatible: " + pkg.isCompatibleWith("1.3"));
}
}