java实现图形卡片排序游戏

import java.util.ArrayList;
import java.util.Collections;
import java.util.Scanner;

public class Main {
 //在Main类中定义一个静态Scanner对象，这样在其它类中如果想要使用该对象进行输入，则直接
 //使用Main.input.next…即可（避免采坑）
 public static Scanner input = new Scanner(System.in);
 public static void main(String[] args){
 ArrayList<Integer> list = new ArrayList<Integer>();
 int num = input.nextInt();
 while(num != 0){
 if(num < 0 || num > 4){
 System.out.println("Wrong Format");
 System.exit(0);
 }
 list.add(num);
 num = input.nextInt();
 }
 DealCardList dealCardList = new DealCardList(list);
 if(!dealCardList.validate()){
 System.out.println("Wrong Format");
 System.exit(0);
 }
 dealCardList.showResult();
 input.close();
 }
 }
class Card{
 Shape shape;
 Card(){
 
 }
 Card(Shape shape){
 this.shape=shape;
 }
 public Shape getShape() {
 return shape;
 }
 public void setShape(Shape Shape) {
 this.shape=shape;
 }
 
}
class DealCardList{
 ArrayList<Card> cardList=new ArrayList<Card>();
 DealCardList(){
 
 }
 DealCardList(ArrayList<Integer> list){
 for(int i=0;i<list.size();i++)
 {
 if(list.get(i)==1)
 {
 double r=Main.input.nextDouble();
 Circle circle=new Circle(r);
 Card card=new Card(circle);
 card.getShape().setShapeName("Circle");
 cardList.add(card); 
 }
 if(list.get(i)==2) {
 double a=Main.input.nextDouble();
 double b=Main.input.nextDouble();
 Rectangle rectangle=new Rectangle(a,b);
 Card card=new Card(rectangle);
 card.getShape().setShapeName("Rectangle");
 cardList.add(card);
 }
 if(list.get(i)==3) {
 double a=Main.input.nextDouble();
 double b=Main.input.nextDouble();
 double c=Main.input.nextDouble();
 Triangle triangle=new Triangle(a,b,c);
 Card card=new Card(triangle);
 card.getShape().setShapeName("Triangle");
 cardList.add(card);
 }
 if(list.get(i)==4) {
 double a=Main.input.nextDouble();
 double b=Main.input.nextDouble();
 double c=Main.input.nextDouble();
 Traperoid traperoid=new Traperoid(a,b,c);
 Card card=new Card(traperoid);
 card.getShape().setShapeName("Trapezoid");
 cardList.add(card);
 }
 }
 }
 public boolean validate() {
 for(int i=0;i<cardList.size();i++)
 {if(!cardList.get(i).getShape().vaildate())
  return false;}
 return true;
 }
 public void cardSort() {
 for(int k=0;k<cardList.size();k++)
 for(int i=k+1;i<cardList.size();i++)
 {
 if(cardList.get(k).getShape().getArea()<cardList.get(i).getShape().getArea())
  Collections.swap(cardList, k, i);
 }
 
 
 }
 public double getAllArea() {
 double s=0;
 for(int i=0;i<cardList.size();i++)
 s=s+cardList.get(i).getShape().getArea();
 return s;
 }
 public void showResult() {
 System.out.println("The original list:");
 for(int i=0;i<cardList.size();i++)
 System.out.print(cardList.get(i).getShape().getShapeName()+":"+String.format("%.2f",cardList.get(i).getShape().getArea())+" ");
 System.out.println();
 System.out.println("The sorted list:");
 cardSort();
 for(int i=0;i<cardList.size();i++)
 System.out.print(cardList.get(i).getShape().getShapeName()+":"+String.format("%.2f",cardList.get(i).getShape().getArea())+" ");
 System.out.println();
 System.out.println("Sum of area:"+String.format("%.2f",getAllArea()));
 }
}
 class Shape {
 private String shapeName;
 Shape(){
 
 }
 Shape(String shapeName){
 this.shapeName=shapeName;
 }
 public String getShapeName() {
 return shapeName;
 }
 public void setShapeName(String shapeName) {
 this.shapeName=shapeName;
 }
 public double getArea() {
 return 0.0;
 }
 public boolean vaildate() {
 return true;
 }
 
}
class Circle extends Shape{
 private double radius;
 Circle(){
 
 }
 Circle(double radius){
 this.radius=radius;
 }
 public double getArea() {
 return Math.PI*radius*radius;
 }
 public boolean vaildate() {
 if(radius>0)
 return true;
 else return false;
 }
}
class Rectangle extends Shape{
 private double width,length;
 Rectangle (double width,double length){
 this.width=width;
 this.length=length;
 }
 public double getArea() {
 return width*length;
 }
 public boolean vaildate() {
 if(width>0&&length>0)
 return true;
 else return false;
 }
 
}
class Triangle extends Shape{
 double side1,side2,side3;
 Triangle(double side1,double side2,double side3){
 this.side1=side1;
 this.side2=side2;
 this.side3=side3;
 }
 public double getArea() {
 double c=(side1+side2+side3)/2;
 double s=Math.sqrt(c*(c-side1)*(c-side2)*(c-side3));
 return s;
 }
 public boolean vaildate() {
 if(side1+side2>side3&&side1+side3>side2&&side2+side3>side1)
 return true;
 else
 return false;
 }

 
}
class Traperoid extends Shape{
 private double topSide,bottomSide,height;
 Traperoid(){
 
 }
 Traperoid(double topSide,double bottomSide,double height){
 this.bottomSide=bottomSide;
 this.height=height;
 this.topSide=topSide;
 }
 public double getArea() {
 return (topSide+bottomSide)*height/2;
 }
 public boolean validate() {
 if(topSide>0&&bottomSide>0&&height>0)
 return true;
 else return false;
 }
}