Java Package hashCode() Method

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Description

The Java Package hashCode() method returns the hash code computed from the package name.

Declaration

Following is the declaration for java.lang.Package.hashCode() method

public int hashCode()

Parameters

NA

Return Value

This method returns the hash code computed from the package name.

Exception

NA

Getting Hash Code of java.lang Package Example

The following example shows the usage of java.lang.Package.hashCode() method. In this program, we've created a Package variable and assigned it java.lang package object. Then using hashCode() method, hash code of the package is printed.

package com.tutorialspoint;

public class PackageDemo {

   public static void main(String[] args) {

      // get the java package
      Package pack = Package.getPackage("java.lang");

      // print the package hash code
      System.out.println(pack.hashCode());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

-888658374

Getting Hash Code of Custom Package Example

The following example shows the usage of java.lang.Package.hashCode() method. In this program, we've created a Package variable and assigned it com.tutorialspoint package object. Then using hashCode() method, hash code of the package is printed.

package com.tutorialspoint;

public class PackageDemo {

   public static void main(String[] args) {

      // get the java package
      Package pack = Package.getPackage("com.tutorialspoint");

      // print the package hash code
      System.out.println(pack.hashCode());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

-1518823960

Getting Hash Code of java.util Package Example

The following example shows the usage of java.lang.Package.hashCode() method. In this program, we've created a Package variable and assigned it java.util package object. Then using hashCode() method, hash code of the package is printed.

package com.tutorialspoint;

public class PackageDemo {

   public static void main(String[] args) {

      // get the java package
      Package pack = Package.getPackage("java.util");

      // print the package hash code
      System.out.println(pack.hashCode());
   }
}

Output

Let us compile and run the above program, this will produce the following result −

-888372146