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Introduction

The Java Package class contain version information about the implementation and specification of a Java package

Class Declaration

Following is the declaration for java.lang.Package class −

public class Package
   extends Object
      implements AnnotatedElement

Class methods

Methods inherited

This class inherits methods from the following classes −

• java.lang.Object

Checking a Package being Sealed Example

The following example shows the usage of lang.Object.isSealed() method. In this program, we've checked the java.lang package being sealed or not using isSealed() method and result is printed as false.

package com.tutorialspoint;

public class PackageDemo {

   public static void main(String[] args) {

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

      // check if this package is sealed
      System.out.println("" + pack.isSealed());
   }
}

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

false