Last time it was Ruby. This time, Go is what I will be using.

Exercises for Programmers on PragProg.com

1. Saying Hello: Create a program that prompts for your name and prints a greeting using your name.

   • Basic Hello

2. Character Counter: Create a program that prompts for an input string and displays output that shows the input string and the number of characters the string contains.

   • Basic Counter

3. Printing Quotes: Create a program that prompts for a quote and an author. Example: Obi Wan said, "These are not the droids you are looking for"

   • Basic Quote

4. Mad Libs: Create a simple mad-lib program that prompts for a noun, a verb, an adverb, and an adjective and injects those into a story that you create. Accept a noun, verb, adjective, and adverb.

   • Basic Mad Lib

5. Simple Math: Write a program that prompts for two numbers. Print the sum, difference, product, and quotient of those numbers as shown in the example output.

   • Simple Math
   • Simple Math Tests

6. Retirement Calculator: Create a program that determines how many years you have left until retirement and the year you can retire. It should prompt for your current age and the age you want to retire and display the calculation.

   • Retirement Calculator
   • Retirement Calculator Tests

7. Rectangular Room: Create a program that calculates the area of a room. Prompt the user for the length and width of the room in feet. Then display the area in both square feet and square meters, using the following equation:

   m**m = f**f * 0.09290304
   

   • Rectangular Area
   • Rectangular Area Tests

8. Pizza Party: Write a program to evenly divide pizzas. Prompt for the number of people, the number of pizzas, and the number of slices per pizza. Ensure that the number of pieces comes out even. Display the number of pieces of pizza each person should get. If there are leftovers, show the number of leftover pieces.

   • Pizza Party
   • Pizza Party Tests

9. Paint Calculator: Calculate gallons of paint needed to paint the ceiling of a room. Prompt for the length and width, and assume one gallon covers 350 square feet. Display the number of gallons needed to paint the ceiling as a whole number.

   • Paint Calculator
   • Paint Calculator Tests

10. Self-Checkout: Create a simple self-checkout system. Prompt for the prices and quantities of three items. Calculate the subtotal of the items. Then calculate the tax using a tax rate of 5.5%. Print out the line items with the quantity and total, and then print out the subtotal, tax amount, and total.

    • Checkout Pkg
    • Checkout Pkg Tests
    • Self Checkout

11. Currency Conversion: Write a program that converts currency. Specifically, convert euros to U.S. dollars. Prompt for the amount of money in euros you have, and prompt for the current exchange rate of the euro. Print out the new amount in U.S. dollars. The formula for currency conversion is amount_to = (amount_from * rate_from) / rate_to, where rate_to is generally 1.0. More details can be found on Mathinary's Currency Conversion page.

    • Converter Pkg
    • Converter Pkg Tests
    • Currency Conversion

12. Computing Simple Interest: Create a program that computes simple interest. Prompt for the principal amount, the rate as a percentage, and the time, and display the amount accrued (principal + interest). The formula for simple interest is A = P * (1 + rt), where P is the principal amount, r is the annual rate of interest, t is the number of years the amount is invested, and A is the amount at the end of the investment. Example: $1758 = 1500(1 + (0.043 × 4)) More details can be found at Simple Interest Calculator.

    • Convert Pkg
    • Convert Pkg Tests
    • Interest Calculator

13. Computing Compound Interest: Skipped