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Package getImplementationVendor() method in Java with Examples

  • Last Updated : 03 Jan, 2020

The getImplementationVendor() method of java.lang.Package class is used to get the vendor of the implementation of this package. The method returns the implementation vendor of the package as a String.

Syntax:

public String getImplementationVendor()

Parameter: This method does not accept any paramter.

Return Value: This method returns the implementation vendor of the package as a String, if known. Else it returns null

Below programs demonstrate the getImplementationVendor() method.



Example 1:




// Java program to demonstrate
// getImplementationVendor() 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 vendor of myPackage
        // using getImplementationVendor() method
        System.out.println(
            "Implementation vendor of myPackage: "
            + myPackage.getImplementationVendor());
    }
}
Output:
Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8
Implementation vendor of myPackage: N/A

Example 2:




// Java program to demonstrate
// getImplementationVendor() 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 getImplementationVendor() method
        System.out.println(
            "Implementation vendor of myPackage: "
            + myPackage.getImplementationVendor());
    }
}
Output:
Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8
Implementation vendor of myPackage: N/A

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

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