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Package hashCode() method in Java with Examples

  • Last Updated : 03 Jan, 2020

The hashCode() method of java.lang.Package class is used to get the hashCode value of this package instance. The method returns the hashCode value as an integer value.

Syntax:

public int hashCode()

Parameter: This method does not accepts any paramter.

Return Value: This method returns the hashCode value as an integer value.

Below programs demonstrate the hashCode() method.



Example 1:




// Java program to demonstrate
// hashCode() 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 hashCode value of this package
        // using hashCode() method
        System.out.println(
            "hashCode value: "
            + myPackage.hashCode());
    }
}
Output:
Package represented by myPackage: package java.lang, Java Platform API Specification, version 1.8
hashCode value: -888658374

Example 2:




// Java program to demonstrate
// hashCode() 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 hashCode value of this package
        // using hashCode() method
        System.out.println(
            "hashCode value: "
            + myPackage.hashCode());
    }
}
Output:
Package represented by myPackage: package java.io, Java Platform API Specification, version 1.8
hashCode value: -1819917198

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

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