SECTION $3$: Problem$-$Solving and Application $(10$ Points$)$

$($Each question is worth $2$ points$)$

Draw a UML Class Diagram for a banking system including the following classes: Account, Customer, and Transaction. Highlight their attributes, methods, and relationships.

Create a Java class Employee with private attributes name, id$,$ and salary. Provide a constructor, getter and setter methods, and a method to calculate the employee's bonus $(10\%$ of the sa$$ary$).$

Draw a UML Use Case Diagram for a library management system with the following functionalities:

Borrow books

Return books

Search for books

Analyze the following Java code and explain the output: