有若干个直柱体(底面与柱面垂直),其底面可能是圆形、矩形。已知柱体的高度、圆的半径、矩形的宽和高。计算柱体的体积和表面积。
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有若干个直柱体(底面与柱面垂直),其底面可能是圆形、矩形。已知柱体的高度、圆的半径、矩形的宽和高。计算柱体的体积和表面积。
public class test {
public static void main(String[] args) {
Rectcylinder rectcylinder=new Rectcylinder(3,4,5);
CircleyCylinder cylinder=new CircleyCylinder(3,4);
System.out.println(rectcylinder.toString());
System.out.println("该矩形体的体积为:"+ rectcylinder.v()+",面积为:"+rectcylinder.s());
System.out.println(cylinder.toString());
System.out.println("该圆柱体的体积为:"+ cylinder.v()+",面积为:"+cylinder.s());
}
}
class Circle {
private int r;
private static double PI=3.14;
public Circle() {
}
public Circle(int r) {
this.r = r;
}
public int getR() {
return r;
}
public void setR(int r) {
this.r = r;
}
public String toString() {
return "Circle{r = " + r + "}";
}
public double s(){
return PI*r*r;
}
public double c(){
return 2*PI*r;
}
}
class Rectangle {
private int length;
private int width;
public Rectangle() {
}
public Rectangle(int length, int width) {
this.length = length;
this.width = width;
}
public int getLength() {
return length;
}
public void setLength(int length) {
this.length = length;
}
public int getWidth() {
return width;
}
public void setWidth(int width) {
this.width = width;
}
public String toString() {
return "Rectangle{length = " + length + ", width = " + width + "}";
}
public int s(){
return this.length*this.width;
}
public int c(){
return 2*(width+length);
}
}
class CircleyCylinder extends Circle{
private int height;
public CircleyCylinder() {
}
public CircleyCylinder(int r, int h) {
setR(r);
this.height = h;
}
public int getH() {
return height;
}
public void setH(int h) {
this.height = h;
}
public String toString() {
return super.toString()+"CircleyCylinder{h = " + height + "}";
}
public double v(){
return super.s()*height;
}
public double s(){
return super.s()*2+super.c()*height;
}
}
class Rectcylinder extends Rectangle{
private int height;
public Rectcylinder() {
}
public Rectcylinder(int length,int width, int h) {
setLength(length);
setWidth(width);
this.height = h;
}
public int getH() {
return height;
}
public void setH(int h) {
this.height = h;
}
public String toString() {
return super.toString()+ "Rectcylinder{h = " + height + "}";
}
public int s(){
return super.s()*2+super.c()*height;
}
public int v(){
return super.s()*height;
}
}

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