Kotlin tutorial

KotlinTutorial.md

No1. leap year

create method isLeapyear

require:

Parameters: year(Int) Return type: Bool

Examples

println(leapyear(2000)) // true
println(leapyear(1209)) // false
println(leapyear(1980)) // true
println(leapyear(1790)) // false
println(leapyear(1993)) // false

No2. Janken game

Create method Janken game. Please output the result in the method

require:

enum HandType enum Reslut

Parameters: (you: HandType) Return type: nil

※cp hand is ramdom hand

Examples

janken(HandType.rock)
// cp: scissors. you win!
janken(HandType.scissors)
// cp: rock. you lose
janken(HandType.paper)
// cp: paper. you draw

No3. leap year app

require:

• Button
• TextView
• TextInput

Examples

No4. Janken Game App

require:

• Button
• TextView
• ImageView

Want function

• Random Animation

No.5 Qiita API Client

request api: https://qiita.com/api/v2/items?page=1&per_page=20

require:

• Fragment

• RecyclerView

• Retrofit2

• Perform screen transition

Documents

qiita api

https://qiita.com/api/v2/docs