7/22 提交

xatu/Canvas.java

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+package edu.xatu;
+
+import javax.swing.*;
+import java.awt.*;
+import java.io.IOException;
+
+public class Canvas extends JPanel {//画布
+    private Interface anInterface=null;
+    Image beijing;
+
+    {
+        try {
+            beijing= GameUtil.getImage("tupian/背景.png");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+    @Override
+    public void paint(Graphics g){
+        super.paint(g);
+        g.drawImage(beijing,0,0,null);
+
+    }
+}

xatu/Flower.java

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+package edu.xatu;
+
+public class Flower {
+    private String name;
+    private int price;
+    private int number;
+
+    public Flower(String name, int price, int number) {
+        this.name = name;
+        this.price = price;
+        this.number = number;
+    }
+    @Override
+    public String toString() {
+        return "Flower{" + "name='" + name + '\'' + ", price=" + price + ", number=" + number + '}';
+    }
+    public String getName() {
+        return name;
+    }
+    public int getPrice() {
+        return price;
+    }
+    public int getNumber() {
+        return number;
+    }
+}

xatu/GameUtil.java

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+package edu.xatu;
+
+import javax.imageio.ImageIO;
+import java.awt.*;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.net.URL;
+
+public class GameUtil {
+    private GameUtil(){
+
+    }
+
+    /*
+     *讲想画的图片的路径传进去
+     * */
+
+    public static Image getImage(String path) throws IOException {
+        BufferedImage bi=null;
+        URL u=GameUtil.class.getClassLoader().getResource(path);
+        bi= ImageIO.read(u);
+        return bi;
+    }
+}

xatu/Interface.java

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+package edu.xatu;
+
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.IOException;
+
+public class Interface extends JFrame {//容器
+    Image beijing;
+
+    {
+        try {
+            beijing= GameUtil.getImage("tupian/背景.png");
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+    @Override
+    public void paint(Graphics g){
+        super.paint(g);
+        g.drawImage(beijing,10,20,null);
+    }
+    public Interface(){
+        super("花店管理");
+        this.setSize(500,667);//设置界面大小
+        this.setLocation(650,130);//设置初始位置
+        this.setVisible(true);//显示窗口
+    }
+}

xatu/Main.java

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+package edu.xatu;
+import java.util.Scanner;
+
+public class Main {
+
+    public static void main(String[] args) {
+        Flower [] a=new Flower[5];
+        Method method =new Method();
+        Interface inc=new Interface();
+        Scanner in=new Scanner(System.in);
+//        for (int i=0;i<5;i++){
+//            System.out.println("请依次输入花的名称，价格，数量");
+//            Flower x=new Flower(in.next(),in.nextInt(),in.nextInt());
+//            a[i]=x;
+//        }
+        /*
+        * 为了方便测试，我直接给赋值
+        */
+        a[0]=(new Flower("菊花",27,35));
+        a[1]=(new Flower("兰花",25,37));
+        a[2]=(new Flower("梅花",22,67));
+        a[3]=(new Flower("紫罗兰",35,62));
+        a[4]=(new Flower("风信子",56,23));
+        while (true) {
+            System.out.println("\t\t\t\t\t\t****************************************");
+            System.out.println("\t\t\t\t\t\t请输入需要选择的功能");
+            System.out.println("\t\t\t\t\t\t1:统计并输出鲜花的总价格,平均价格,最高价和最低价");
+            System.out.println("\t\t\t\t\t\t2:按照价格降序排序并输出");
+            System.out.println("\t\t\t\t\t\t3:统计高于平均价格和低于平均价格的鲜花数量");
+            System.out.println("\t\t\t\t\t\t4:输入鲜花名称查询商品的价格和数量");
+            System.out.println("\t\t\t\t\t\t****************************************");
+            int i=in.nextInt();
+            if (i==1)
+                method.calculation(a);
+            else if (i==2)
+                method.sort(a);
+            else if (i==3)
+                method.statistics(a);
+            else if (i==4)
+                method.query(a);
+            System.out.println("\t\t\t\t****************************************");
+            System.out.println("\t\t\t\t继续使用菜单请输入0");
+            System.out.println("\t\t\t\t****************************************");
+            i=in.nextInt();
+            if (i!=0)
+                break;
+        }
+    }
+}

xatu/Method.java

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+package edu.xatu;
+
+import java.util.Scanner;
+
+public class Method {
+    private double ag;
+    Scanner in=new Scanner(System.in);
+    public void calculation(Flower[] a){
+        int total=0,max=0,min=a[0].getPrice();
+        double average=0.0;
+        for (int i=0;i<5;i++){
+            average+=a[i].getPrice();
+            total+=(a[i].getNumber()*a[i].getPrice());
+            if (max<a[i].getPrice()) {
+                max = a[i].getPrice();
+            }else
+            if (min>a[i].getPrice()) {
+                min = a[i].getPrice();
+            }
+        }
+        average=average/5;
+        this.ag=average;
+        System.out.println("它的总价格："+total+"平均价格："+average+"最高价："+max+"最低价："+min);
+    }//统计价格
+    public void sort(Flower[] a){
+        int leng=a.length-1;
+        for(int i =0;i<leng;i++) {
+            for(int j=0;j<leng-i;j++) {
+                if (a[j].getPrice()<a[j+1].getPrice()) {
+                    Flower x = null;
+                    x=a[j];
+                    a[j]=a[j+1];
+                    a[j+1]=x;
+                }
+            }
+        }
+        for (int i=0;i<a.length;i++){
+            System.out.println(a[i]);
+        }
+    }//排序
+    public void statistics(Flower[] a){
+        int high=0,low=0;
+        for (int i=0;i<a.length;i++){
+            if (a[i].getPrice()<this.ag)
+                low+=a[i].getNumber();
+            if (a[i].getPrice()>this.ag)
+                high+=a[i].getNumber();
+        }
+        System.out.println("高于平均价格的数量："+high+"低于平均价格的数量："+low);
+    }//统计数量
+    public void query(Flower[] a){
+        System.out.println("请输入要查询的花的名字");
+        String name=in.nextLine();
+        for (int i=0;i<a.length;i++){
+            if (a[i].getName().equals(name))
+                System.out.println("它的价格为："+a[i].getPrice()+"它的数量为："+a[i].getNumber());
+        }
+    }//查询
+}