Java Package - isSealed() Method

The java.lang.Package.isSealed() method is used to check if this package is sealed. It returns true if this package is sealed, false otherwise.

Syntax

public boolean isSealed()

Parameters

No parameter is required.

Return Value

Returns true if the package is sealed, false otherwise.

Exception

NA.

Example:

In the example below, the java.lang.Package.isSealed() method is used to check if the given package is sealed or not.

import java.lang.*;

public class MyClass {
  public static void main(String[] args) {
    //create a java util package object
    Package p = Package.getPackage("java.util");

    //check if this package is sealed
    System.out.println("Is the package sealed?: " + p.isSealed());
  }
}

The output of the above code will be:

Is the package sealed?: true

❮ Java.lang - Package