Hu Jincheng’s Nerversitup Mobile Developer Testing

An application to display BTC’s currency as this 3 rate (USD, GBP and EUR)

This is an application for Neversitup Co., Ltd’s Mobile Developer Testing with the following features:

  1. Displaying of BTC’s currency as this 3 rate (USD, GBP and EUR) from API
  2. Currency rate must have to auto update every 1 minute
  3. Able to re-check history rate recorded · datetime · price USD · price GBP · price EUR
  4. There is Input field for choosing 3 rate currency following on a. Then able to filling currency rate exchange to BTC


  1. generate program of Fibonacci’s numbers (0, 1, 1, 2, 3, 5, 8, 13, …)
  2. generate program of prime numbers (2, 3, 5, 7, 11, 13, 17, 19, …)
  3. code to filter an array from an array of two numbers, leaving only the members of the first array left in the second array, without using existing functions such as map, filter, contain, etc.


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