Java Data Type Tutorial - Java SecurityManager .checkTopLevelWindow (Object window)

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Syntax

SecurityManager.checkTopLevelWindow(Object window) has the following syntax.

public boolean checkTopLevelWindow(Object window)

Example

In the following code shows how to use SecurityManager.checkTopLevelWindow(Object window) method.

//  w  w  w  .j ava2 s .c  o  m

public class Main extends SecurityManager {

   public static void main(String[] args) {

      System.setProperty("java.security.policy", "file:/C:/java.policy");

      Main sm = new Main();

      System.setSecurityManager(sm);

      boolean checked = sm.checkTopLevelWindow("Window");
      System.out.println(checked);
   }
}

The code above generates the following result.

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