Java Package.isSealed()

Syntax

Package.isSealed() has the following syntax.

public boolean isSealed()

Example

In the following code shows how to use Package.isSealed() method.


//w w w  . ja  va  2  s  .  com
public class Main {

   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());

   }
}

The code above generates the following result.





















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Boolean
Byte
Character
Class
Double
Enum
Float
Integer
Long
Math
Number
Object
Package
Process
ProcessBuilder
Runnable
Runtime
SecurityManager
Short
StackTraceElement
StrictMath
String
StringBuffer
StringBuilder
System
Thread
ThreadGroup
ThreadLocal
Throwable