java.lang.Package.isCompatibleWith(String desired)

package com.codingdict;



public class PackageDemo {



   public static void main(String[] args) {



      // get the java lang package

      Package pack = Package.getPackage("java.lang");



      // check if this package is compatible with version 1.4.6

      System.out.println("" + pack.isCompatibleWith("1.4.6"));

   }

}