Jul 28, 2022 · Given a radius of the circle, write a java program to calculate and display the area of the circle. (Take ∏=3.142) Example. Output: Area of circle is : 78.55. Input : radius= 8. Output: Area of circle is : 201.08.

Mar 24, 2010 · I need to draw a circle within a JFrame with a radius and points around the circumference. i can mathematically calculate how to find the coordinates of the point around the edge but i cant seem to be able to program the circle.

Feb 2, 2024 · In this article, we will introduce how we can draw a circle in Java using libraries java.awt and javax.swing that are used to create GUI components. We will use several functions of the Graphics2d class that provides more control over the graphical components that we want to draw on the screen.

Apr 16, 2025 · Java program to calculate or to print area of a circle in a simple method. If you were new to java or at the beginning stage then, Check – 500+ simple Java programs for beginners.

Sep 15, 2022 · In this tutorial, you will learn how to calculate area and circumference of circle in Java. We will see two programs, in the first program, the radius value is initialized in the program and in the second program, the radius value is entered by the user.

Sep 10, 2024 · In this section, we will explore how to write a Circle program in Java, covering different approaches to achieve this and provide complete code examples. A circle is a fundamental geometric shape defined by a set of points in a plane that are equidistant from a fixed point called the center.

Sep 15, 2015 · public static void main (String args[]) { double pi = 3.14159; . double radius = 15.337; double circumference = (2*pi*radius); double area = (pi*(radius*2)); System.out.println("The radius of the circle" = radius); System.out.println("The circumference of the circle" = circumference); System.out.println("The area of the circle" = area);

Apr 7, 2025 · Write a Java program to print the area and perimeter of a circle. In geometry, the area enclosed by a circle of radius r is πr 2 . Here the Greek letter π represents a constant, approximately equal to 3.14159, which is equal to the ratio of …

Sep 29, 2023 · To create a circle in Java there are various functions available. These functions are the fillOval() function, the drawRoundRect() function, and the draw() function. These functions use certain arguments like height, width and the axis to create a circle in Java.

This Java program is used to calculate the area of a circle. Example: import java.util.Scanner; public class CircArea { public static void main(String ag[]) { int rad; double pie = 3.14, ar; Scanner s = new Scanner(System.in); System.out.print("Enter radius of circle:"); rad = s.nextInt(); ar = pie * rad * rad; System.out.println("Area of ...