Java.lang.System.getSecurityManager() Method

Description

The java.lang.System.getSecurityManager() method gets the system security interface.

Declaration

Following is the declaration for java.lang.System.getSecurityManager() method

public static SecurityManager getSecurityManager()

Parameters

• NA

Return Value

This method returns the security manager if that security manager has already been established for the current application, else null is returned.

Exception

• NA

Example

The following example shows the usage of java.lang.System.getSecurityManager() method.

package com.tutorialspoint;

import java.lang.*;

public class SystemDemo {

   public static void main(String[] args) {

      // prints the name of the Operating System
      System.out.println(System.getProperty("os.name"));

      SecurityManager s = System.getSecurityManager();
      if(s == null) {
         System.out.println("SecurityManager not been established..");
      }   
   }
} 

Let us compile and run the above program, this will produce the following result:

Windows XP
SecurityManager not been established..