第4次作业类测试代码+105032014162+张倩

1 package demo04;
2 import java.awt.event.ActionEvent;
3 import java.awt.event.ActionListener;
4 import java.awt.Color;
5 import java.awt.Font;
6 import javax.swing.JFrame;
7 import javax.swing.JLabel;
8 import javax.swing.JButton;
9 import javax.swing.JTextField;
10 import javax.swing.JOptionPane;
11 public class caculate {
12     public static void main(String args[]){
13         JFrame frame = new JFrame("配件销售计算程序");
14         frame.setLayout(null);
15         //建立标签对象
16         JLabel title = new JLabel("请输入销售数量：");
17         JLabel headphone = new JLabel("耳机：");
18         JLabel shell = new JLabel("手机壳：");
19         JLabel protector = new JLabel("贴膜：");
20         JLabel commission = new JLabel("应返还的佣金：");
21         JLabel mostSale = new JLabel("销售额最高的配件是：");
22         JLabel diffSale = new JLabel("销售配件最多与最少数量相差：");
23         //建立单行文本框
24         JTextField t_headphone = new JTextField();
25         JTextField t_shell = new JTextField();
26         JTextField t_protector = new JTextField();
27         JTextField t_commission = new JTextField();
28         JTextField t_mostSale = new JTextField();
29         JTextField t_diffSale = new JTextField();
30         //建立按钮对象
31         JButton submit = new JButton("确定");
32         JButton cancel = new JButton("清除");
33
34         //使用匿名内部类为“确定”按钮添加监听事件
35         submit.addActionListener(new ActionListener()
36         {
37             @Override
38             public void actionPerformed(ActionEvent arg0)
39             {
40                 int headphone = Commission.changeToInt(t_headphone.getText());
41                 if(headphone < 0)
42                 {
43                     JOptionPane.showMessageDialog(null, "输入有误，请重新输入", "出错", JOptionPane.ERROR_MESSAGE);
44                     return;
45                 }
46                 int protector=Commission.changeToInt(t_protector.getText());
47                 if(protector < 0)
48                 {
49                     JOptionPane.showMessageDialog(null, "输入有误，请重新输入", "出错", JOptionPane.ERROR_MESSAGE);
50                     return;
51                 }
52                 int shell=Commission.changeToInt(t_shell.getText());
53                 if(shell < 0)
54                 {
55                     JOptionPane.showMessageDialog(null, "输入有误，请重新输入", "出错", JOptionPane.ERROR_MESSAGE);
56                     return;
57                 }
58                 float returnAns=Commission.commission(headphone, shell, protector);
59                 String returnString=String.format("%.2f元", returnAns);
60                 t_commission.setText(returnString);
61                 String maxAns=Commission.mostSale(headphone, shell, protector);
62                 t_mostSale.setText(maxAns);
63                 int differenceAns=Commission.diffSale(headphone, shell, protector);
64                 String differenceString=String.format("%d", differenceAns);
65                 t_diffSale.setText(differenceString);
66             }
67
68         });
69         //使用匿名内部类为“清除”按钮添加监听事件
70         cancel.addActionListener(new ActionListener()
71         {
72             @Override
73             public void actionPerformed(ActionEvent arg0)
74             {
75                 t_headphone.setText("");
76                 t_protector.setText("");
77                 t_shell.setText("");
78                 t_commission.setText("");
79                 t_mostSale.setText("");
80                 t_diffSale.setText("");
81             }
82         });
83         //设置标签大小及位置
84         Font ft = new Font("宋体",Font.BOLD,24);
85         title.setFont(ft);
86         title.setBounds(62, 62, 250, 25);
87         headphone.setFont(ft);
88         headphone.setBounds(80, 124, 300, 25);
89         shell.setFont(ft);
90         shell.setBounds(210, 124, 250, 25);
91         protector.setFont(ft);
92         protector.setBounds(380, 124, 155, 25);
93         commission.setFont(ft);
94         commission.setBounds(62, 248, 500, 25);
95         mostSale.setFont(ft);
96         mostSale.setBounds(62, 310, 900, 25);
97         diffSale.setFont(ft);
98         diffSale.setBounds(62, 372, 1000, 25);
99         //设置文字大小及位置
100         Font fft=new Font("宋体",Font.BOLD,14);
101         t_headphone.setBounds(150, 124, 50, 25);
102         t_shell.setBounds(310, 124, 50, 25);
103         t_protector.setBounds(450, 124, 50, 25);
104         t_commission.setBounds(230, 248, 200, 25);
105         t_commission.setFont(fft);
106         t_commission.setForeground(Color.black);//设置字体颜色
107         t_mostSale.setBounds(300, 310, 200, 25);
108         t_mostSale.setFont(fft);
109         t_mostSale.setForeground(Color.black);
110         t_diffSale.setBounds(400, 372, 150, 25);
111         t_diffSale.setFont(fft);
112         t_diffSale.setForeground(Color.black);
113         //设置按钮位置及大小
114         submit.setBounds(180, 187, 62, 31);
115         cancel.setBounds(320, 187, 62, 31);
116         //把所有组件添加到frame中
117         frame.add(title);frame.add(headphone);frame.add(shell);frame.add(protector);
118         frame.add(commission);frame.add(mostSale);frame.add(diffSale);
119         frame.add(t_headphone);frame.add(t_shell);frame.add(t_protector);
120         frame.add(t_commission);frame.add(t_mostSale);frame.add(t_diffSale);
121         frame.add(submit);frame.add(cancel);
122         //设置显示画布大小及显示的位置
123         frame.setSize(600, 490);
124         frame.setLocation(300,300);
125         frame.setVisible(true);
126     }
127
128 }

package demo04;

public class Commission {
//判断输入的值是否符合要求
public static int changeToInt(String number)
{
int result=0;
try{
result = Integer.parseInt(number);
}
catch (Exception e){
result=-1;
}
return result;
}

//计算应该返还的佣金
public static float commission(int headphone,int shell,int protector)
{
int all = headphone*80+shell*10+protector*8;
float result = 0;
if(headphone>=0&&shell>=0&&protector>=0)
{
if(all<1000&&all>=0)
{
result = (float) (all*0.1);
}
else if(all>=1000 && all<=1800)
{
result = (float) (100+(all-1000)*0.15);
}
else if(all>1800)
{
result = (float) (100+800*0.15+(all-1800)*0.2);
}
}
return result;

}

//计算销售额最高的配件
public static String mostSale(int headphone, int shell, int protector)
{
int headphoneSales = headphone * 80;
int shellSales = shell * 10;
int protectorSales = protector * 8;
String result="";
if(headphoneSales > shellSales && headphoneSales > protectorSales)
{
result+="耳机";
}

if(shellSales > headphoneSales && shellSales > protectorSales)
{
result+="手机壳";
}
if(protectorSales > headphoneSales && protectorSales > shellSales)
{
result+="贴膜";
}
if(headphoneSales==shellSales&&shellSales==protectorSales)
{
result+="三种配件销售额一样";
}
if(headphoneSales==shellSales&&headphoneSales>protectorSales)
{
result+="耳机和手机壳";
}
if(headphoneSales==protector&&headphoneSales>shellSales)
{
result+="耳机和贴膜";
}
if(shellSales==protectorSales&&shellSales>headphoneSales)
{
result+="手机壳和贴膜";
}
return result;
}

//销售配件最多与最少数量相差：
public static int diffSale(int headphone, int shell, int protector){
int max=Math.max(Math.max(headphone, shell), protector);
int min=Math.min(Math.min(headphone, shell), protector);
return max-min;
}

}