Exercises

Below are a list of exercises to complete. Answers will be provided in the next section.

Important

To learn properly it is recommended to attempt the exercises before looking at the answers.

  1. Write a program that displays each data type. An example output is shown.

byte: 125
short: 32000
int: 500000
long: 9999999999
float: 10.4
double: -50112.56
char: A
boolean: true

  1. Write a program that changes the value of a variable 3 times. An example output is shown.

Original: 105
Change 1: 110
Change 2: -15
Change 3: 12

  1. Add the following variables together.

int x = 10;
int y = 12;
int z = 42;

Example output

10 + 12 + 42 = 64

Challenge Question

Note

Challenge questions are here to stump you and test your problem solving skills. The content in a challenge question will be covered in later units.

  1. Create a Pythagorean calculator. The user will input values for a and b. The calculator should respond with the length of the hypotenuse.

The formula for Pythagorean theorem is: \(a^2 + b^2 = c^2\)

Example

Welcome to the Pythagorean Calculator!!!

Enter the length of side A: 3
Enter the length of side B: 4
Calculating
The length of the hypotenuse is: 5