Java SecurityManager .checkTopLevelWindow (Object window)
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 ava 2 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.
