The class below has encapsulation problems. Fix them!

```java

public class Student{

private String firstName;

private String lastName;

private String studentId;

}

```

## Requirements

Components that you will be graded upon:

- No direct access to private data allowed from the outside

- Provide a constructor that takes studentId, firstName, and lastName IN THAT ORDER

- Allow first and last names to be read and updated.

- Do not allow student id to be changed after object construction

- As part of object construction, enforce validation so that the studentId must meet the following criteria:

- 9 characters in overall length,

- The first character is K (case sensitive)

- The second and all subsequent characters are numeric.

- If it does not meet the requirement, add the following code to the correct section of the validation:

```java

throw new Exception("Student ID must be 9 characters long, start with a K, and have seven trailing numeric characters");

```

You will also need to add the following to end of your constructor declaration:

```java

throws Exception

```

- Make sure your code compiles to get maximum partial credit even if it doesn't pass all tests

/**

* Problem1

*/

public class Problem1 implements IProblem {

public void run(){

// TODO:

// 1) Add the Student class to the same folder this file is in

// DO NOT WRITE the Student code in THIS file

// 2) Write the code to TEST the Student class in this method

// (e.g. Create an instance of Student, call its methods, etc)

}

}

public class Student{

}