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

Contents

## 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?

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.