In this program, we will java Program see how to calculate the area of a circle when the radius is given.
在main方法中调用printAreas()方法,调用完毕后输出当前半径值。packagestudy03;publicclassCircle {privatedoubleradius;publicvoidsetRadius(doubleradius) {this.radius =radius; }publicdoublegetRadius() {returnradius; }publicdoublefindArea(){return3.14*radius*radius; } }packagestudy03;publicclassPassObject {publ...
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:
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Write a Java program to create a class called "Rectangle" with width and height attributes. Calculate the area and perimeter of the rectangle. Sample Solution: Java Code: // Define the Rectangle classpublicclassRectangle{// Declare a private variable to store the width of the rectangleprivatedou...
Find the Area of a Circle Inscribed in a Square in Java - A circle is a round shape two-dimensional diagram which has no corners. Every circle has an origin point and every point on the circle maintains equal distance from the origin. The distance betwee
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){ this.r=r;} public Double getArea(){ double s=(Math.PI)*(Math.pow(this.r, 2));return s...
CircleTest { @Test public void testGetArea() { double expectArea = 3.14D; Circle circle = PowerMockito.mock(Circle.class); PowerMockito.when(circle.getArea()).thenReturn(expectArea); double actualArea = circle.getArea(); Assert.assertEquals("返回值不相等", expectArea, actualArea, 1E-6D);...
方法: MongoDB中的集合查询(获取一组文档中某个字段的不同值列表) 运用方法:DBCollection对象方法中的 distinct() 语句: 语句结构:distinct(key,[query]) key字符串,指定获取哪个字段的不同值;query:包含标准查询选项的对象,指定了要从哪个文档
TurfMeasurementContains an assortment of methods used to calculate measurements such as bearing, destination, midpoint, etc.along bbox bbox-polygon bearing destination distance envelope length midpoint square TurfMetaContains methods that are useful for getting all the coordinates from a specific GeoJSON...