java.lang.Package.getImplementationVersion() java.lang.Package.getImplementationVendor() java.lang.Package.getName() java.lang.Package.getImplementationVersion() package com.codingdict; public class PackageDemo { public static void main(String[] args) { // create a package object for java.lang package Package pack = Package.getPackage("java.lang"); // get the implementation version System.out.println("" + pack.getImplementationVersion()); } } java.lang.Package.getImplementationVendor() java.lang.Package.getName()