How do you find the perimeter of a circle in Java?

How do you find the area and perimeter of a circle in Java?

CalculateCircleArea(r) to calculate area of circle and return its value. CalculateCircleCircumference(r) to calculate circumference (perimeter) of circle.

How do you calculate perimeter in Java?


  1. public class Main.
  2. {
  3. public static void main (String args[])
  4. { float a ,b, c, d, perimeter;
  5. a=c= 5;
  6. b=d=4;
  7. perimeter = 2*(a+b);
  8. System.out.println(“Perimeter of Rectangle is: “+perimeter);

What is the perimeter formula?

Perimeter, Area, and Volume

Table 1 . Perimeter Formulas
Shape Formula Variables
Square P=4s s is the length of the side of the square.
Rectangle P=2L+2W L and W are the lengths of the rectangle’s sides (length and width).
Triangle a+b+c a,b , and c are the side lengths.

What is parameter in Java?

A parameter is a value that you can pass to a method in Java. Then the method can use the parameter as though it were a local variable initialized with the value of the variable passed to it by the calling method.

How do you find the radius?

Let us use these formulas to find the radius of a circle.

  1. When the diameter is known, the formula for the radius of a circle is: Radius = Diameter / 2.
  2. When the circumference is known, the formula for the radius is: Radius = Circumference / 2π
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What is the algorithm for finding the area of a circle?

The area of a circle is pi times the radius squared (A = π r²). Learn how to use this formula to find the area of a circle when given the diameter.

What is the algorithm for circumference?

Circumference of a circle can simply be evaluated using following formula. Circumference = 2*pi*r where r is the radius of circle and value of pi = 3.1415.