Task_3 - 2017

Exercise on Class Relationship

This exercise is intended to allow students to practice basic Class Relationship
Aggregation and Composition

There are 2 Exercises that you have to complete individually
write down your identity (Name, Student ID, Class) on the top of each file

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Exercise 1

Task 3 - Exercise 1 - 2017

Write Java Program as described in Class Diagram below

![Class Diagram Exercise 1] (/exercise1.JPG)

• Class Application.java

• Constructor initialize application name and size (MB)

• Method toString() : String returns String that contains application name and application size
  example : "Application name: App_1, with size: 3MB"
  

• Class AppStore.java

• method createNewApp( appName, appSize ) instantiate new Application object and insert it in array appList

• method getApp( id ) : Application returns Application object from array appList with array index = id

• Method toString() : String returns String that contains the number of Application available
  example : "There are 5 applications ready to install"
  

• Class SmartPhone.java

• method addApplication( appStore , appId ) get an Application object from array appList of an appStore with array index = appId
  an Application can be installed if Application size < remaining memory size

• method getRemainingSize() : int returns the remaining memory size of the smart phone

• Method toString() : String returns String that contains the smart phone total memory size, number of application installed, and remaining memory size
  example : "memory size 100MB, 5 application installed, remaining memory size: 60MB"
  

Write a Driver.java class (Main class) to test these scenarios
(Scenario Testing)

• instantiate 1 AppStore object aps
  example : AppStore aps = new AppStore();
• create 4 new Applications within the App Store aps, with app name = app1, app2, app3, and app4; and app size 100, 200, 300, and 400
  example : aps.createNewApp( "app1" , 100 );
• display the status of App Store aps
  example : System.out.println( aps );
• display the status of one of application available on App Store aps
  example : System.out.println( aps.getApp( 2 ) );
• instantiate 1 SmartPhone object sm, set the memory size 300
  example :
  SmartPhone sm = new SmartPhone();
sm.setMemory(300);
• display the status of SmartPhone sm
  example : System.out.println( sm );
• install applications (in sequence) app1, app3, and app2 in SmartPhone sm
  example : sm.addApplication( aps, app1 );
• display the status of SmartPhone sm after each installation
  

Try another scenario case on your own

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Exercise 2

Task 3 - Exercise 2 - 2017

Write Java Program as described in Class Diagram below

![Class Diagram Exercise 2] (/exercise2.JPG)

• Class Member.java

• Create 2 Constructors : initialize name, and initialize name and specialization

• Method toString() : String returns String that contains member name, specialization, and number of project worked
  example : "Member Alex specialized in Java Programming and already worked on 5 projec(s)"
  

• Class Project.java

• Constructor initialize project name, instantiate array member with size of [5],
  and set release status = false

• method addMember( m : Member ) add an object Member m into array team member
  increment integer nTeam+1

• method releaseApp() set release status = true

• Method toString() : String returns String that contains Project name, number of team member, and release status
  example : "Project Exodus status is in progress with team member of 4"
  

• Class StartUp.java

• method addMember( m : Member ) add an object Member m into array member
  increment integer nMember+1

• method getMember( id : int ) : Member returns Member object from array member with array index = id

• method createNewProject( projectName : String ) instantiate new Project object and insert it in array projectList
  increment integer nProject+1

• method getProject( id : int ) : Project returns Project object from array projectList with array index = id

• method releaseProject( p : Project ) set release status of object Project p by invoking method releaseApp()

• method getNumReleasedProject() : int returns number of project with status is released

Write a Driver.java class (Main class) to test these scenarios
(Scenario Testing)

• instantiate 1 StartUp object stp
  example : StartUp stp = new StartUp();
• instantiate 5 new Member objects with name = Alex, Beni, Cakra, Deni, and Eric; and add them to StartUp stp
  example :
  Member m = new Member("Alex");
stp.addMember( m );
• create 2 Project object within the Start Up stp, with project name = project1 and project2
  example : stp.createNewProject( "project1" );
• set project member as below
• add Alex, Beni, and Deni into Project1
• add Beni, Cakra, Deni, and Eric into Project2 example :
  Project p = stp.getProject( 0 );
Member m = stp.getMember( 0 );
stp.setProjectMember( p , m );
  
• set release one of the project
  example : stp.releaseProject( stp.getProject( 1 ) );
• display the status of every member in Start Up stp
  example : System.out.println( stp.getMember( 0 ) );
• display the status of every project in Start Up stp
  example : System.out.println( stp.getProject( 0 ) );
• display the number of released project in Start Up stp
  

Try another scenario case on your own