Capitalize in Every Language

Published on 31 March 2019 (Updated: 02 May 2020)

In this article, we’ll tackle the Capitalize program, its requirements, and how to test it.

Description

This simple program picks a string and return the first letter of it in uppercase.

Requirements

For this sample program, each solution should return the string with the first letter in uppercase. In other words, do not change anything else about the input string.

string -> String
react -> React
java -> Java
car -> Car
a long string term -> A long string term

In addition, there should be some error handling for situations where the user doesn’t input a string.

Testing

Feel free to use the following table when testing capitalize programs

Description	Input	Output
No input		Usage: please provide a string
Empty input	""	Usage: please provide a string
Lowercase String	hello	Hello
Uppercase String	Hello	Hello
Long String	hello world	Hello world
Mixed Casing	heLLo World	HeLLo World
Symbols	12345	12345

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