//Java program to Calculate Area of a Circle. import java.util.Scanner; public class AreaCircle { public static void main(String[] args) { double radius; Scanner sc = new Scanner(System.in); // input radius of circle System.out.print("Enter the Radius of Circle : "); radius = sc....
// 导入java包importjava.util.Scanner;publicclassCircle{publicstaticvoidmain(String[]args){// 创建Scanner对象Scannerinput=newScanner(System.in);// 提示用户输入圆的半径System.out.print("请输入圆的半径:");doubleradius=input.nextDouble();// 计算面积doublearea=Math.PI*radius*radius;// 计算周长double...
方法名为calculateCircleArea。 方法接受一个浮点数类型的参数,命名为radius,代表圆的半径。 计算圆的面积: 使用公式πr²来计算圆的面积。在Java中,我们可以使用Math.PI来获取π的值。 返回计算结果: 将计算得到的圆面积值返回。 设置方法的访问修饰符: 确保方法的访问修饰符为public,以便其他类可以调用。
In this program, we will java Program see how to calculate the area of a circle when the radius is given.
解析 public class Circle { double radius; public Circle(double rad) { radius = rad; } public double calcArea() { return Math.PI * radius * radius; } public static void main(String[] args) { Circle c = new Circle(3); System.out.println(c.calcArea()); } }...
7) double getArea(),重写Circle类中的area方法,返回圆柱体的表面积 8) double getVolume(),返回圆柱体的体积 9) public String toString( ),将把当前圆柱体对象的转换成字符串形式,例如半径为10.0,高为5.0,返回字符串"Cylinder(h:5.0,Circle(r:10.0))"。
Input the radius of the circle: 5 Perimeter is = 31.41592653589793 Area is = 78.53981633974483 Flowchart: Java Code Editor: Previous:Write a Java program to compute a specified formula. Next:Write a Java program that takes five numbers as input to calculate and print the average of the numbers...
import java.util.*;public class Circle { private double r;Scanner sc=new Scanner(System.in);public Circle(){ super();System.out.println("输入圆的半径：");r=sc.nextDouble();setR(r);double s=getArea();System.out.println("圆的面积S="+s);} public void setR(double r){ ...
Area: A=πr2 (π = 3.14) Perimeter (Circumference): C=2πr (π = 3.14) Diameter: d=2r Here is asimpleJava programto find out Diameter, Area and Circumference of any given circle provided you have radius. Create class CrunchifyCircleDiameterAreaCircumference.java ...
编写一个完整的Java Application 程序。包含接口ShapeArea,类Circle、Rectangle、Test,具体要求如下:⑴接口ShapeArea: