Java Data Type Tutorial - Java SecurityManager .checkPermission (Permission perm)

Syntax

SecurityManager.checkPermission(Permission perm) has the following syntax.

public void checkPermission(Permission perm)

Example

In the following code shows how to use SecurityManager.checkPermission(Permission perm) method.

/*  w  w  w.  j av a 2s  . c o  m*/
import java.io.FilePermission;

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);

      sm.checkPermission(new FilePermission("test.txt", "read,write"));

      System.out.println("Allowed!");
   }
}