java.lang.Package.hashCode() java.lang.Package.getSpecificationVersion() java.lang.Package.isAnnotationPresent(Class<? extends Annotation> annotationClass) java.lang.Package.hashCode() package com.codingdict; public class PackageDemo { public static void main(String[] args) { // get the java lang package Package pack = Package.getPackage("java.lang"); // print the hash code computed for this package System.out.println("" + pack.hashCode()); } } java.lang.Package.getSpecificationVersion() java.lang.Package.isAnnotationPresent(Class<? extends Annotation> annotationClass)