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.

Apr 16, 2025 · The following Java program to print the area of a circle has been written in five simple different ways, static method, using constructor, Interface, inheritance with sample outputs for each program. Table of contents: 5 Simple ways to print AOC

rad = s.nextInt(); . ar = pie * rad * rad; System. out.println("Area of circle:" + ar); } } This program is used to calculate the area of a circle where the radius will be fetched from user.

Jul 23, 2022 · In this article, we will learn how to find the area of the circle. Terminology: Area: A quantity that represents the extent of a 2-dimensional figure or shape in the plane is known as an area. Radius: The line segment from the center to any point of the circle is known as radius.

Jan 8, 2024 · In this quick tutorial, we’ll illustrate how to calculate the area of a circle in Java. We’ll be using the well-known math formula: r^2 * PI. 2. A Circle Area Calculation Method. Let’s first create a method that will perform the calculation: double area = radius * radius * Math.PI;

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 …

Nov 3, 2013 · Use this.area =... or else you're just overwriting your input parameter. area and radius should be correlated. If you set the area to a given value, it should also set the radius. And if you set the radius, it should also set the area.

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.

Write a Java Program to Find the Area of a Circle with an example. The area of a circle is the total number of square units inside the circle. The standard formula to calculate the area of a circle is A = πr².

Program to find area of circle in java. To find area of circle we will use below formula: Area of circle = πr². We will use Math.PI to get the exact value of π = 3.141592653589793 . Here is a video tutorial, explaining java program to find area of circle using Math.PI in-built constant.