「java面积编程题」求面积的编程

博主:adminadmin 2022-11-22 07:05:10 58

本篇文章给大家谈谈java面积编程题,以及求面积的编程对应的知识点,希望对各位有所帮助,不要忘了收藏本站喔。

本文目录一览:

java 面积编程题

public class Test

{

public static void main(String[] args)

{

Circle c = new Circle("black",5.2);

Rectangle r = new Rectangle("white",2.3,3.5);

System.out.println(c.show());

System.out.println(r.show());

}

}

abstract class Shape

{

String color;

Shape()

{}

Shape(String color)

{

this.color = color;

}

abstract public double getArea();

}

class Circle extends Shape

{

private double r;

Circle(String color,double r)

{

this.color = color;

this.r = r;

}

public double getArea()

{

return Math.PI*Math.pow(r,2);

}

public String show()

{

return "r:" + r + ", color:" + color;

}

}

class Rectangle extends Shape

{

private double a,b;

Rectangle(String color,double a,double b)

{

this.color = color;

this.a = a;

this.b = b;

}

public double getArea()

{

return a*b;

}

public String show()

{

return "a:" + a + " b:" + b +", color:" + color;

}

}

JAVA 编程题(输入坐标求出边长和面积以及...)?

四边形的话,坐标点应该是四对八个坐标数字啊,参数x,y,width,height给出没啥意义啊,题意再说清晰一点

JAVA编程题。编写一个应用程序计算圆的周长和面积,设圆的半径为1.5,输出圆的周长和面积值。

import java.util.Scanner;

public class Circle {

public static void main(String[] args) {

System.out.println("请输入圆半径:");

Scanner input = new Scanner(System.in);

float r = input.nextFloat();

float perimeter = getPerimeter(r);

float area = getArea(r);

System.out.println("圆的周长为:" + perimeter);

System.out.println("圆的面积为:" + area);

}

static float getArea(float r) {

return (float) (3.14 * r * r);

}

static float getPerimeter(float r) {

return (float) (3.14 * r * 2);

}

}

Java编程求矩形的面积

import java.util.*;

public class Rectangle {

private float length; //定义长变量

private float width; // 宽变量

public Rectangle(float length,float width){

this.length=length;

this.width=width;

}

public float getGirth(){

return (length+width)*2;

} //求周长方法

public float getArea(){

return length*width;

} //求面积方法

public static void main (String[] args) {

Scanner in=new Scanner(System.in);//调用输入方法

System.out.println ("请输入矩形的长:");

float a=in.nextFloat();

System.out.println ("请输入矩形的宽:");

float b=in.nextFloat();

System.out.println ("矩形周长为:"+new Rectangle(a,b).getGirth());

System.out.println ("矩形面积为:"+new Rectangle(a,b).getArea());

}

}

JAVA编程中求圆的面积怎么写?

import java.util.Scanner;

//java  并不直接支持控制台输入,但可以使用Scanner类建立它的对象,已读取来System.in的输入

public class KongZhi {

public static void main(String[] args) {

Scanner input = new Scanner( System.in);

System.out.println("Enter a number for radius: ");

double radius = input.nextDouble();

double area= radius*radius*3.14;

System.out.println("The area for the circle of radius "+radius+"  "+area);

}

}

扩展资料:

其他方法求圆的面积:

#includestdio.h

#includemath.h

#define M=3.14

int main()

{

int r;

double s;

scanf("%d",r);

s=M*pow(r,2);

printf("%0.7lf",s);

return 0;

}

java编程(11分)求正方形的面积。要求

interface IShape{

public double area();

}

class square implements IShape{

double length ;

public square(double l){

length = l;

}

public double area(){

return length*length;

}

}

public class Test {

public static void main(String[] args) {

square s = new square(5);

System.out.println(s.area());

}

}

java面积编程题的介绍就聊到这里吧,感谢你花时间阅读本站内容,更多关于求面积的编程、java面积编程题的信息别忘了在本站进行查找喔。

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发布于:2022-11-22,除非注明,否则均为首码项目网原创文章,转载请注明出处。