mirror of https://github.com/01-edu/public.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
83 lines
2.1 KiB
83 lines
2.1 KiB
3 months ago
|
## Area Calculator
|
||
|
|
||
|
### Instructions
|
||
|
|
||
|
Create a class `AreaCalculator` that has an overloaded method `calculate` to calculate the area of different shapes. The method should be able to calculate the area for:
|
||
|
|
||
|
- A circle (given the radius)
|
||
|
- A rectangle (given the width and height)
|
||
|
- A triangle (given the base and height)
|
||
|
- A square (given the side length)
|
||
|
|
||
|
#### Formulas for area calculations:
|
||
|
|
||
|
- Circle: Area = 𝜋 × radius²
|
||
|
|
||
|
- Rectangle: Area = width × height
|
||
|
|
||
|
- Triangle: Area = ½ × base × height
|
||
|
|
||
|
- Square: Area = side²
|
||
|
|
||
|
### Expected Class
|
||
|
|
||
|
```java
|
||
|
public class AreaCalculator {
|
||
|
public double calculate(double radius) {
|
||
|
// calculate area of circle
|
||
|
}
|
||
|
|
||
|
public double calculate(double width, double height) {
|
||
|
// calculate area of rectangle
|
||
|
}
|
||
|
|
||
|
public double calculate(double base, double height, boolean isTriangle) {
|
||
|
// calculate area of triangle
|
||
|
}
|
||
|
|
||
|
public double calculate(double side, boolean isSquare) {
|
||
|
// calculate area of square
|
||
|
}
|
||
|
}
|
||
|
```
|
||
|
|
||
|
### Usage
|
||
|
|
||
|
Here is a possible ExerciseRunner.java to test your class:
|
||
|
|
||
|
```java
|
||
|
public class ExerciseRunner {
|
||
|
public static void main(String[] args) {
|
||
|
AreaCalculator calculator = new AreaCalculator();
|
||
|
|
||
|
// Test calculate area of a circle
|
||
|
double circleArea = calculator.calculate(5.0);
|
||
|
System.out.println("Area of circle: " + circleArea);
|
||
|
|
||
|
// Test calculate area of a rectangle
|
||
|
double rectangleArea = calculator.calculate(4.0, 6.0);
|
||
|
System.out.println("Area of rectangle: " + rectangleArea);
|
||
|
|
||
|
// Test calculate area of a triangle
|
||
|
double triangleArea = calculator.calculate(4.0, 6.0, true);
|
||
|
System.out.println("Area of triangle: " + triangleArea);
|
||
|
|
||
|
// Test calculate area of a square
|
||
|
double squareArea = calculator.calculate(4.0, true);
|
||
|
System.out.println("Area of square: " + squareArea);
|
||
|
}
|
||
|
}
|
||
|
```
|
||
|
|
||
|
### Expected Output
|
||
|
|
||
|
```shell
|
||
|
$ javac *.java -d build
|
||
|
$ java -cp build ExerciseRunner
|
||
|
Area of circle: 78.54
|
||
|
Area of rectangle: 24.0
|
||
|
Area of triangle: 12.0
|
||
|
Area of square: 16.0
|
||
|
$
|
||
|
```
|