Lesson: Quick Tour of Controlling Applications

This lesson shows how to use a security manager to grant or deny access to system resources for applications. The lesson also shows how resource accesses, such as reading or writing a file, are not permitted for applications that are run with a security manager unless explicitly allowed by a permission entry in a policy file.

The steps for this lesson are:

1. Observe Application Freedom
2. See How to Restrict Applications
3. Set Up the Policy File to Grant the Required Permissions
4. See the Policy File Effects