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Package hashCode() method in Java with Examples

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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 parameter.
Return Value: This method returns the hashCode value as an integer value.
Below programs demonstrate the hashCode() method.
Example 1:
 

Java




// 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




// 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–
 



Last Updated : 14 Feb, 2022
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