Small Challenge 1
Write a program to read and write the time your program was last used to a file.
When the program starts, display a message saying when it was last used.
Small Challenge 2
Draw a picture of a butterfly.
Math Challenge 1
Calculate the sum of all digits in a number.
If this has more than 1 digit, then sum these until you have a single number.
- Sum of digits is 1+0+9+4+4+3 = 21
- Sum of digits is 2+1 = 3
- Answer = 3
Any number divisible by 3 results in 3 unless it is divisible by 9 in which case the result is 9.
Calculate the square root of a number without using the Math methods (SquareRoot or Power).
Create a program that can add basic electrical components (battery, wires, switch and a light).
The user can connect them up and test the circuit.
Create a visually fun clock.
Create an old style tone telephone keypad that plays the tones for different numbers.
Create a random password generator.
Community Challenge 1
By Math Man
Make a program to organize an array alphabetically.
Community Challenge 2
By Amir CPS
- Draw a periodic table (Chemistry) and show all the basic properties of the element in a popup box when mouse is clicked on a box.
- Draw a heart shape and calculate it’s area.