See http://tutorials.gschool.it/ruby_basics for more details.
Write a program that asks the user for their name, and then prints out "Hello [name]!"
Skills
- Reading input from a user
- Printing output to the terminal
Write a program that prints out verses of "99 bottles of beer on the wall", according to the following rules:
- The user must type "88", where 88 is any positive number, and the program will print those verses.
- If the user runs the program without typing anything, print "I need to know how many bottles to sing!"
- If the user runs the program and specifies a verse, print all the lines from the song starting at that verse
- If the user types anything but "", show an error and exit
Skills
- Reading input from a user
- Printing output to the terminal
- Conditional statements
- Raising errors
Write a program that:
- Asks the user to write something
- Prints "HUH?! SPEAK UP SONNY!" if the user didn't type in all uppercase
- Prints "NO, NOT SINCE 1944!" if the user types something in all caps
Each time the program prints "NO, NOT SINCE 1944!", it should print a different, random year between 1930 and 1950.
Skills
- Reading input from a user
- Printing output to the terminal
- Generating random numbers
- Checking strings for their capitalization
- Conditional statements
Write a program that converts numbers into Roman numerals.
| Decimal value (v) | Roman numeral (n) |
|---|---|
| 1 | I |
| 4 | IV |
| 5 | V |
| 9 | IX |
| 10 | X |
| 40 | XL |
| 50 | L |
| 90 | XC |
| 100 | C |
| 400 | CD |
| 500 | D |
| 900 | CM |
| 1000 | M |
Skills
- Control flow (loops, conditionals / case statements)
- Converting a String to a Fixnum (integer)
- Building a string
Write a program that helps users find the birth date and age of a person. The program should:
- Prompt the user for a name
- Print that person's name and birth date and age based on the data in
bin/birthday_data.csv
Skills
- Converting a String to a Date
- Printing a date in a friendly format
- Reading and parsing data from a file