package application;public class Commission {/** hp：耳机 80元 mpc：手机壳 10元 cpsp：手机贴膜 8元*/public float calculate(String line) {int hp = 0, mpc = 0, cpsp = 0;String[] input = null;float money = 0;while (true) {// 【去掉字符串前后的空格】line = line.trim();// 【去掉字符串中多余的空格】line = line.replaceAll("\\s{1,}", " ");input = line.split(" ");if (Judge(input)) {// 判断是否不小于0if ((hp = Integer.parseInt(input[0])) < 0) {System.out.println("输入数量不满足要求");return -1;}if ((mpc = Integer.parseInt(input[1])) < 0) {System.out.println("输入数量不满足要求");return -1;}if ((cpsp = Integer.parseInt(input[2])) < 0) {System.out.println("输入数量不满足要求");return -1;}} else {System.out.println("输入数量不满足要求");return -1;}money = commission(hp, mpc, cpsp);return money;}}// 计算佣金private static float commission(int hp, int mpc, int cpsp) {float commission = 0;int total = hp * 80 + mpc * 10 + cpsp * 8;if (total < 1000) {commission = (float) (total * 0.1);} else if (total <= 1800) {commission = (float) (1000 * 0.1 + (total - 1000) * 0.15);} else {commission = (float) (1000 * 0.1 + 800 * 0.15 + (total - 1800) * 0.2);}return commission;}// 判断用户输入的是不是三个整数private static boolean Judge(String[] input) {String number = "0123456789";// 判断输入的是不是三个字符串if (input.length != 3) {return false;}// 判断三个字符串是不是纯数字且不含小数点for (int i = 0; i < 3; i++) {for (int j = 0; j < input[i].length(); j++) {
if ("+".equals(String.valueOf(input[i].charAt(0))) || "-".equals(String.valueOf(input[i].charAt(0)))) {if ("+".equals(String.valueOf(input[i].charAt(0)))) {input[i].substring(1);}continue;}if (number.indexOf(input[i].charAt(j)) == -1) {return false;}// 【判断输入的字符串是否大于整型的最大数值】
input[i] = input[i].replaceFirst("^0*", "");if (Long.parseLong(input[i]) > Integer.MAX_VALUE || input[i].length() > 10) {return false;}}}return true;}
}

package application;import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Parent;
import javafx.scene.Scene;
import javafx.stage.Stage;public class Main extends Application {@Overridepublic void start(Stage primaryStage) {try {Parent root = FXMLLoader.load(getClass().getResource("Main.fxml"));primaryStage.setTitle("Calculate Commission");primaryStage.setScene(new Scene(root));primaryStage.show();} catch (Exception e) {e.printStackTrace();}}public static void main(String[] args) {launch(args);}
}

package application;import java.net.URL;
import java.util.ResourceBundle;
import javafx.fxml.FXML;
import javafx.fxml.Initializable;
import javafx.scene.control.TextField;public class MainController implements Initializable {@FXMLprivate TextField TF_hp;@FXMLprivate TextField TF_mpc;@FXMLprivate TextField TF_cpsp;@FXMLprivate TextField TF_commission;@FXMLprivate TextField TF_MostSale;@FXMLprivate TextField TF_MaxMin;@Overridepublic void initialize(URL arg0, ResourceBundle arg1) {// TODO Auto-generated method stub
}public void BT_OK_Event() {Commission commission = new Commission();String hp, mps, cpsp;int headphone, mobilePhoneShell, protector;hp = TF_hp.getText();mps = TF_mpc.getText();cpsp = TF_cpsp.getText();String input = hp + " " + mps + " " + cpsp;float salary = commission.calculate(input);if (salary != -1) {headphone = Integer.parseInt(hp);mobilePhoneShell = Integer.parseInt(mps);protector = Integer.parseInt(cpsp);String mostsale = mostSale(headphone, mobilePhoneShell, protector);int diffsal = diffSale(headphone, mobilePhoneShell, protector);TF_commission.setText(String.valueOf(salary));TF_MostSale.setText(mostsale);TF_MaxMin.setText(String.valueOf(diffsal));} else {TF_commission.setText("您输入有误，请重新输入！");TF_MostSale.clear();TF_MaxMin.clear();}}public void BT_Cancel_Event() {TF_hp.clear();TF_mpc.clear();TF_cpsp.clear();TF_commission.clear();TF_MostSale.clear();TF_MaxMin.clear();}private int diffSale(int headphone, int mobilePhoneShell, int protector) {int diffsal = 0;int max, min;max = Math.max(Math.max(headphone, mobilePhoneShell), protector);if (max == headphone) {min = Math.min(mobilePhoneShell, protector);} else if (max == mobilePhoneShell) {min = Math.min(headphone, protector);} else {min = Math.min(headphone, mobilePhoneShell);}diffsal = max - min;return diffsal;}private String mostSale(int headphone, int mobilePhoneShell, int protector) {int hp, mps, cpsp, max;String mostsale = null;hp = headphone * 80;mps = mobilePhoneShell * 10;cpsp = protector * 8;max = Math.max(Math.max(hp, mps), cpsp);if (max == hp) {mostsale = "耳机";} else if (max == mps) {mostsale = "手机壳";} else {mostsale = "贴膜";}return mostsale;}}

<?xml version="1.0" encoding="UTF-8"?><?import javafx.scene.control.*?>
<?import javafx.scene.text.*?>
<?import java.lang.*?>
<?import javafx.scene.layout.*?>
<?import javafx.scene.layout.AnchorPane?><AnchorPane prefHeight="278.0" prefWidth="399.0"xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1"fx:controller="application.MainController"><children><Text layoutX="14.0" layoutY="32.0" strokeType="OUTSIDE"strokeWidth="0.0" text="请输入销售数量" wrappingWidth="165.240234375"><font><Font size="18.0" /></font></Text><Text layoutX="14.0" layoutY="73.0" strokeType="OUTSIDE"strokeWidth="0.0" text="耳机："><font><Font size="16.0" /></font></Text><Text layoutX="147.0" layoutY="73.0" strokeType="OUTSIDE"strokeWidth="0.0" text="手机壳："><font><Font size="16.0" /></font></Text><Text layoutX="289.0" layoutY="72.0" strokeType="OUTSIDE"strokeWidth="0.0" text="贴膜："><font><Font size="16.0" /></font></Text><TextField fx:id="TF_hp" layoutX="62.0" layoutY="53.0"prefHeight="23.0" prefWidth="48.0"><font><Font size="13.0" /></font></TextField><TextField fx:id="TF_mpc" layoutX="214.0" layoutY="52.0"prefHeight="23.0" prefWidth="48.0"><font><Font size="13.0" /></font></TextField><TextField fx:id="TF_cpsp" layoutX="337.0" layoutY="52.0"prefHeight="23.0" prefWidth="48.0"><font><Font size="13.0" /></font></TextField><Button layoutX="99.0" layoutY="90.0" mnemonicParsing="false"onAction="#BT_OK_Event" prefHeight="28.0" prefWidth="64.0" text="OK"AnchorPane.bottomAnchor="164.0" AnchorPane.topAnchor="91.0"><font><Font size="13.0" /></font></Button><Button layoutX="236.0" layoutY="90.0" mnemonicParsing="false"onAction="#BT_Cancel_Event" prefHeight="28.0" prefWidth="64.0" text="Cancel"AnchorPane.bottomAnchor="164.0" AnchorPane.topAnchor="91.0"><font><Font size="13.0" /></font></Button><Text layoutX="38.0" layoutY="155.0" strokeType="OUTSIDE"strokeWidth="0.0" text="应返还的佣金："><font><Font size="16.0" /></font></Text><Text layoutX="38.0" layoutY="195.0" strokeType="OUTSIDE"strokeWidth="0.0" text="销售额最高的配件是："><font><Font size="16.0" /></font></Text><Text layoutX="38.0" layoutY="235.0" strokeType="OUTSIDE"strokeWidth="0.0" text="销售配件最多与最少数量相差："><font><Font size="16.0" /></font></Text><TextField fx:id="TF_commission" layoutX="156.0" layoutY="135.0"prefHeight="28.0" prefWidth="203.0"><font><Font size="13.0" /></font></TextField><TextField fx:id="TF_MostSale" layoutX="199.0" layoutY="175.0"prefHeight="28.0" prefWidth="160.0"><font><Font size="13.0" /></font></TextField><TextField fx:id="TF_MaxMin" layoutX="269.0" layoutY="215.0"prefHeight="28.0" prefWidth="91.0"><font><Font size="13.0" /></font></TextField></children>
</AnchorPane>