in java thanks.

Define the following three classes: 1) Circle

1. a) Must have a private attribute called radius of type double.

2. b) Must have a constructor which takes a single parameter of type double. It

   should set the class attribute radius to this value.

3. c) Must have a method called circumference, which takes no parameters,

   and returns a double. The circumference of a circle is calculated by multiplying 2 * Pi * radius. Note: both Java and C# have a constant called Math.PI which is equal to Pi.

4. d) Must have a method called area, which takes no parameters and returns a double. The area of a circle is calculated by multiplying Pi * radius^2. The Math class in both Java and C# have a method for calculating one number raised to a power. Youll need to look up this method and use it to raise the radius to the second power.

2) Triangle

1. a) Must have 3 private attributes to hold side1, side2 and side3. Each of

   which should be of type double.

2. b) Must have a constructor that takes in 3 parameters and sets the 3

   attributes

3. c) Must have an overloaded constructor that takes no parameters and sets

   the 3 attributes to sizes 3, 4 and 5.

4. d) Must have a method called perimeter which takes in no parameters and

   returns a double. The perimeter of a triangle is calculated by adding

   side1+side2+side3

5. e) Must have a method called area which takes no parameters and returns a

   double. The area of a triangle is calculated as follows (Youll need to look up the square root function in the Math object in Java or C#):

   1. i) Calculate p=(side1+side2+side3)/2

   2. ii) Take the square root of (p*(p-side1)*(p-side2)*(p-side3)).

6. f) Must have a method called height which takes no parameters and returns a double. The height of a triangle is calculated as follows:

   1. i) Find the smallest of the 3 sides (side1, side2 or side3)

   2. ii) Multiple the area of the triangle by 2, then divide that by the

      smallest side.

7. g) Override the toString/ToString method in this class. Have it return a string

   that gives the details of the triangle. For example: Triangle has sides x, y

and z. It has an area of X and perimeter of Y.

3) Rectangle

1. a) Must have 2 private attributes height and width. Both of which should be

   of type double.

2. b) Must have a constructor which takes in 2 parameters and sets the 2

   attributes of the class

3. c) Must have a method called perimeter which takes no parameters and

   returns a double. The perimeter of a rectangle is calculated by adding

   2*height + 2*width

4. d) Must have a method called area which takes no parameters and returns a

   double. The area of a rectangle is calculated by multiplying the height by the width.

Create a driver program which does the following:

1. 1) Using a loop print out the area and circumference of circles with radius 1, 2, 3 ...

   9, 10. Here is what the first line should look like:

   Area of a circle with radius 1 is 3.14159265358979 circumference is 6.28318530717959

2. 2) Using nested loops, print out the area and perimeter of rectangles with width 1, 2 and 3 and heights 1, 2, and 3. Ie, youll print out the area and perimeter for a rectangle 1x1, 1x2, 1x3, 2x1, 2x2, 2x3, 3x1, 3x2, and 3x3. The first line should look like:

   Area of a rectangle 1 by 1 is 1 it's perimeter is 4

3. 3) Create a triangle with sides 18, 30 and 24. Calculate its area, perimeter and height and print them as follows:

   Area of a triangle 18x30x24 is 216 it's perimeter is 72 and it's height is 24

4. 4) Create a triangle of size 3,4,5 by calling the constructor with no parameters. Calculate its area, perimeter and height and print like the one above.