Application

Create an application that will run various operations on collections and maps, count and display the execution time.

Required functionality

• One Activity with ViewPager, which contains 2 screens with Fragments. Each screen for work with particular collections group.

Fragment #1

Collection Interface

• ArrayList
• LinkedList
• CopyOnWriteArrayList

Required operations

• Adding in the beginning;
• Adding in the middle;
• Adding in the end;
• Search by value;
• Removing in the beginning;
• Removing in the middle;
• Removing in the end.

Fragment #2

Map Interface

• TreeMap
• HashMap

Required operations

• Adding new;
• Search by key;
• Removing;

General

• Text Entry field for specifying collection size.
• Table. Displays results of various operations on collections. Interface realization - row, execution time - colons.
  • Collection table 7 colons and 3 rows;
  • Map table 3 colons and 2 rows;
• The value of each cell is calculated asynchronously. During the calculation, progress bar is displayed inside cell.
• Button which starts calculation.
  • Fills collection with specified amount of elements.
  • Starts asynchronous calculation of each cell value in currently active Fragment.
  • Calculation must be activity independent in case of screen rotation.

Technology stack

• Language - Java
• Architecture pattern - MVP
• ViewPager
• Android Architecture Components
  • View Binding
• Dagger2
• RxJava2
• RxAndroid
• JUnit
• Mockito
• Espresso