System.setSecurityManager() in Java

System.setSecurityManager(): This method is available in java.lang.System class of Java.

Syntax:

void java.lang.System.setSecurityManager(SecurityManager sm)

This method takes one argument of type SecurityManager as its parameter. This method sets the system-wide security manager.

Parameters: One parameter is required for this method.

sm: the security manager or null.

Throws:

1. SecurityException - if the security manager has already been set and its checkPermission method doesn't allow it to be replaced.

2. UnsupportedOperationException - if sm is non-null and a security manager is not allowed to be set dynamically

Approach

Java

public class SystemsetSecurityManager {
    public static void main(String[] args) {

        SecurityManager sm = null;
        System.setSecurityManager(sm);

        System.out.println("Successfully sets Security Manager");
    }
}

Output:

Successfully sets Security Manager