Geometry.java
public abstract class Geometry {
public abstract double getArea();
}TotalArea.java
public class TotalArea {
Geometry[] tuxing;
double totalArea=0;
public void setTuxing(Geometry[] t) {
tuxing=t;
}
public double computerTotalArea() {
for(int i=0;iRect.java
public class Rect extends Geometry {
double a,b;
Rect(double a,double b) {
this.a = a;
this.b = b;
}
public double getArea(){
return a*b;
}
}Circle.java
public class Circle extends Geometry {
double r;
Circle(double r) {
this.r = r;
}
public double getArea(){
return 3.14*r*r;
}
}MainClass.java
public class MainClass{
public static void main(String args[]) {
Geometry [] tuxing=new Geometry[29];
for(int i=0;i运行结果：
欢迎分享，转载请注明来源：内存溢出
微信扫一扫
支付宝扫一扫
评论列表（0条）