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Java Package getImplementationVersion() method with example

Package Class getImplementationVersion() method: Here, we are going to learn about the getImplementationVersion() method of Package Class with its syntax and example.
Submitted by Preeti Jain, on November 30, 2019

Package Class getImplementationVersion() method

  • getImplementationVersion() method is available in java.lang package.
  • getImplementationVersion() method is used to retrieve the versions of the package that provides an implementation of the package.
  • getImplementationVersion() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • getImplementationVersion() method does not throw an exception at the time of returning version of the package.


    public String getImplementationVersion();


  • It does not accept any parameter.

Return value:

The return type of this method is String, it returns an implementation version of the package.


// Java program to demonstrate the example 
// of String getImplementationVersion()
// of Package method

public class GetImplementationVersion {
    public static void main(String[] args) {
        // Get Package by using getPackage() method
        Package pkg = Package.getPackage("java.util");

        // Get implementation version of the package by using 
        // getImplementationVersion() and stored in a variable
        // called iversion
        String iversion = pkg.getImplementationVersion();

        // Display version of the package
        System.out.print("Package Version: ");


Package Version: 1.5.0


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