java期末考试

FAN类

import java.util.Scanner;

public class Main {


    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc= new Scanner(System.in);
        while(sc.hasNextLine()) {
            String line =sc.nextLine();
            String[] arr=line.split(",");
//            if(arr[3]="0")
//                System.out.println();
            Fan f=new Fan();
            f.setSpeed(Integer.parseInt(arr[0]));
            f.setColor(arr[1]);
            f.setRadius(Double.parseDouble(arr[2]));
            f.setOn(arr[3].equals("1")?true:false);//当字符串比较值时，不能直接用==，而是用String.equals()来比较
            System.out.println(f);
        }
    }


}
class Fan {
    private static final int SLOW=1;
    private static final int MEDIUM=2;
    private static final int FAST=3;
    private int speed=Fan.SLOW;
    private boolean on =true;
    private double radius =5;
    private String color ="blue";
    
    
    public Fan() {
        super();
        // TODO Auto-generated constructor stub
    }
    public int getSpeed() {
        return speed;
    }
    public void setSpeed(int speed) {
        this.speed = speed;
    }
    public boolean isOn() {
        return on;
    }
    public void setOn(boolean on) {
        this.on = on;
    }
    public double getRadius() {
        return radius;
    }
    public void setRadius(double radius) {
        this.radius = radius;
    }
    public String getColor() {
        return color;
    }
    public void setColor(String color) {
        this.color = color;
    }
    //@Override
    public String toString() {
        String info="";
        if(this.on) {
            return info="speed:"+this.speed+",color:"+this.color+",radius:"+this.radius;
        }
        else
            return info="fan is off,color:"+this.color+",radius:"+this.radius;
    }
}

图形类

import java.util.Scanner;
import java.text.DecimalFormat;




public class Main {
    public static void main(String[] args) {
        Scanner input=new Scanner(System.in);
        Shape[] shapes=new Shape[3];
        while(input.hasNextLine()) {
            for(int i=0;i<shapes.length;i++) {
                String s=input.nextLine();
                String[] arr=s.split(",");
                if(arr[0].equals("C")||arr[0].equals("c")) {
                    shapes[i]=new Circle(Double.parseDouble(arr[1]));
                }
                if(arr[0].equals("R")||arr[0].equals("r")) {
                    shapes[i]=new Rectangle(Double.parseDouble(arr[1]),Double.parseDouble(arr[2]));
                }
            }
            for(int i=0;i<shapes.length;i++) {
                System.out.println(shapes[i]);
            }
        }
    }
}
abstract class Shape  {
    
    public abstract double getArea();
    
    
    public abstract double getPerimeter();
    
}
class Circle extends Shape {


    private double radius;


    public Circle() {
        super();
    }


    public Circle(double radius) {
        super();
        this.radius = radius;
    }


    public double getRadius() {
        return radius;
    }


    public void setRadius(double radius) {
        this.radius = radius;
    }


    @Override
    public double getArea() {        
        return Math.PI * this.radius * this.radius;
    }


    @Override
    public double getPerimeter() {
        return Math.PI * this.radius * 2;
    }


    @Override
    public String toString() {
        DecimalFormat df=new DecimalFormat("0.00");
        return "Circle:area=" + df.format(getArea()) + ",perimeter=" + df.format(getPerimeter());
    }
    
    


}
class Rectangle extends Shape {


    private double width;
    private double height;


    public Rectangle() {
        super();
    }


    public Rectangle(double width, double height) {
        super();
        this.width = width;
        this.height = height;
    }


    public double getWidth() {
        return width;
    }


    public void setWidth(double width) {
        this.width = width;
    }


    public double getHeight() {
        return height;
    }


    public void setHeight(double height) {
        this.height = height;
    }


    @Override
    public double getArea() {
        return this.width * this.height;
    }


    @Override
    public double getPerimeter() {
        return 2 * (this.height + this.width);
    }


    @Override
    public String toString() {
        DecimalFormat df=new DecimalFormat("0.00");
        return "Rectangle:area=" + df.format(getArea()) + ",perimeter=" + df.format(getPerimeter());
    }


    
    
}

各种各样的门

import java.util.Scanner;






public class Main {


    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner sc =new Scanner(System.in);
        Door[] doors=new Door[3];
        while(sc.hasNextLine()) {
            for(int i=0;i<doors.length;i++) {
                String line = sc.nextLine();
                String[] arr = line.split(",");
                
                if(arr[0].equals("F")||arr[0].equals("f")) {
                    doors[i]=new FangDaoMen(arr[1]);
                }
                else {
                    doors[i]=new PuTongMen(arr[1]);
                }                
                        
            }
            for(int i=0;i<doors.length;i++) {
                System.out.println(doors[i]);
            }
            
        }
    }


}
abstract class Door {
    private  String color;
    public Door(String color) {
        super();
        this.color = color;
    }


    public Door() {
        super();
        // TODO Auto-generated constructor stub
    }


    public String getColor() {
        return color;
    }


    public void setColor(String color) {
        this.color = color;
    }


    public abstract String open();
    
    public abstract String close();    
}
interface Alarm {


    String alarm();
    
}
class FangDaoMen extends Door implements Alarm{


    


    public FangDaoMen() {
        super();
        // TODO Auto-generated constructor stub
    }
    public FangDaoMen(String color) {
        super(color);
        // TODO Auto-generated constructor stub
    }
    @Override
    public String toString() {
        return "FangDaoMen [open()=" + open() + ", close()=" + close() + ", alarm()=" + alarm() + ", getColor()="
                + getColor() + "]";
    }


    


    @Override
    public String alarm() {
        // TODO Auto-generated method stub
        return "FangDaoMen alarming";
    }


    @Override
    public String open() {
        // TODO Auto-generated method stub
        return "FangDaoMen open";
    }


    @Override
    public String close() {
        // TODO Auto-generated method stub
        return "FangDaoMen close";
    }
    
}
class PuTongMen extends Door{


    


    
    public PuTongMen() {
        super();
        // TODO Auto-generated constructor stub
    }


    public PuTongMen(String color) {
        super(color);
        // TODO Auto-generated constructor stub
    }


    @Override
    public String toString() {
        return "PuTongMen [open()=" + open() + ", close()=" + close() + ", getColor()=" + getColor() + "]";
    }


    @Override
    public String open() {
        // TODO Auto-generated method stub
        return "PuTongMen open";
    }


    @Override
    public String close() {
        // TODO Auto-generated method stub
        return "PuTongMen close";
    }
    
}