Pleae Use starUML to draw class diagrams for the exercises below.

Exercise1:

The UCLA library has many books. The library has many users (represented as an interface) which are of two kinds: students or teachers. There are two types of students: undergraduate students and graduate students. Students have a student ID number and teachers have a staff ID number. Books have an ISBN number and a status indicating whether the book is in the library or has been borrowed. The library has the following rules: 1. All users can search for books 2. All users can borrow books. 3. All users can return books. 4. Undergraduate students can borrow at most 10 books. 5. Graduate students can borrow at most 20 books. 6. Teachers who worked in UCLA for more than 5 years can borrow at most 30 books. In addition, if you are an undergraduate student or a graduate student or a teacher then you know which books you have, but from a book it is not possible to find out which undergraduate student or graduate student or teacher has borrowed it.

1. A Microsoft Word report which contains your three class diagrams. Copy-paste each of the three exercises below into your report. Find the clues of classes, attributes, and methods in the descriptions of the exercises, and highlight them with different kinds of underlines or colors. For each exercise, put the corresponding class diagram (as a picture) under the highlighted description of the exercise. 1. A Microsoft Word report which contains your three class diagrams. Copy-paste each of the three exercises below into your report. Find the clues of classes, attributes, and methods in the descriptions of the exercises, and highlight them with different kinds of underlines or colors. For each exercise, put the corresponding class diagram (as a picture) under the highlighted description of the exercise