Package getImplementationTitle() method in Java with Examples

The getImplementationTitle() method of java.lang.Package class is used to get the title of the implementation of this package. The method returns the implementation title of the package as a String.
Syntax:

public String getImplementationTitle()

Parameter: This method does not accept any parameter.
Return Value: This method returns the implementation title of the package as a String, if known. Else it returns null
Below programs demonstrate the getImplementationTitle() method.
Example 1:

Java

// Java program to demonstrate
// getImplementationTitle() method

public class Test {
    public static void main(String[] args)
    {

        // returns the Package
        // object for this package
        Package myPackage
            = Package.getPackage("java.lang");

        System.out.println(
            "Package represented by myPackage: "
            + myPackage.toString());

        // Get the implementation title of myPackage
        // using getImplementationTitle() method
        System.out.println(
            "Implementation title of myPackage: "
            + myPackage.getImplementationTitle());
    }
}

Output:

Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8
Implementation title of myPackage: Java Runtime Environment

Example 2:

Java

// Java program to demonstrate
// getImplementationTitle() method

public class Test {
    public static void main(String[] args)
    {

        // returns the Package
        // object for this package
        Package myPackage
            = Package.getPackage("java.io");

        System.out.println(
            "Package represented by myPackage: "
            + myPackage.toString());

        // Get the name of myPackage
        // using getImplementationTitle() method
        System.out.println(
            "Implementation title of myPackage: "
            + myPackage.getImplementationTitle());
    }
}

Output:

Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8
Implementation title of myPackage: Java Runtime Environment

Reference: https://docs.oracle.com/javase/9/docs/api/java/lang/Package.html#getImplementationTitle–