Java Data Type Tutorial - Java SecurityManager .checkRead (String file)

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Syntax

SecurityManager.checkRead(String file) has the following syntax.

public void checkRead(String file)

Example

In the following code shows how to use SecurityManager.checkRead(String file) method.

import java.io.FileDescriptor;
/*from   w ww  . ja  v a  2 s.  co  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);

      sm.checkRead("test.txt");

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

The code above generates the following result.

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