从另一个JAVA类调用验证
我在做一个有5门课的项目。其中之一是验证类。我在控制课上验证了数据，但教授希望在单独的课堂上验证。 这是我的代码示例。用户在令牌中输入信息。运行良好，但在控制器类中，我应该“调用”具有自己类的验证。我该怎么编码从另一个JAVA类调用验证,java,class,validation,joptionpane,stringtokenizer,Java,Class,Validation,Joptionpane,Stringtokenizer,我在做一个有5门课的项目。其中之一是验证类。我在控制课上验证了数据，但教授希望在单独的课堂上验证。 这是我的代码示例。用户在令牌中输入信息。运行良好，但在控制器类中，我应该“调用”具有自己类的验证。我该怎么编码 while (tkCustomer.hasMoreTokens()){ //store each token in the corresponding variable //Make sure we format integers //variablename
while (tkCustomer.hasMoreTokens()){
//store each token in the corresponding variable
//Make sure we format integers
//variablename = tkCustomer.nextToken();
firstName = tkCustomer.nextToken( );
lastName = tkCustomer.nextToken ( );
phone = tkCustomer.nextToken ( );
nbrVehicle = Integer.parseInt(tkCustomer.nextToken( ));
nbrTanks = Integer.parseInt(tkCustomer.nextToken( ));
}
//validate each data entered here
int firstNameLength = firstName.length();
if(firstNameLength == 0){
String errorMessage = "Please Enter a Valid First Name";
JOptionPane.showMessageDialog(null, errorMessage, "Invalid Name", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
int lastNameLength = lastName.length();
if(lastNameLength == 0){
String errorMesssage = "Please Enter a Valid Last Name";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Name", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
int phoneLength = phone.length();
if(phoneLength != 10) {
String errorMesssage = "Please Enter a Valid Phone Number";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Phone Number", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
if(nbrVehicle < 1 || nbrVehicle > 10) {
String errorMesssage = "Please Enter a Number Between 1 & 10 for Your Order of Vehicles";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Vehicle Order", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
if(nbrTanks != 2 && nbrTanks != 4 && nbrTanks != 8 && nbrTanks != 10 && nbrTanks != 15 && nbrTanks != 20){
String errorMesssage = "Please Enter Either 2, 4, 8, 10, 15, or 20 for Your Order of Tanks";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Number of Tanks", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}
}
}
}
}
/**
* @param args
*/
public static void main(String[] args) {
//create variables to hold information collected from the user
String firstName = null;
String lastName = null;
String phone = "";
int nbrTanks = 0;
int nbrVehicle = 0;
double total = 0;
do{
//collect the data entered by the user in
//variables
String customerMessage = "Please enter the following separated by spaces"
+ "\n\n"
+ "- Customer First Name\n"
+ "- Customer Last Name\n"
+ "- Customer Phone\n"
+ "- Number of Vehicles\n"
+ "- Number of Tanks"
+ "\n\n"
+ "Example: Homer Simpson 9094559384 5 8\n\n"
;
StringTokenizer tkCustomer = new StringTokenizer(
JOptionPane.showInputDialog(customerMessage));
while (tkCustomer.hasMoreTokens()){
//store each token in the corresponding variable
//Make sure we format integers
//variablename = tkCustomer.nextToken();
firstName = tkCustomer.nextToken( );
lastName = tkCustomer.nextToken ( );
phone = tkCustomer.nextToken ( );
nbrVehicle = Integer.parseInt(tkCustomer.nextToken( ));
nbrTanks = Integer.parseInt(tkCustomer.nextToken( ));
}
//validate each data entered here
int firstNameLength = firstName.length();
if(firstNameLength == 0){
String errorMessage = "Please Enter a Valid First Name";
JOptionPane.showMessageDialog(null, errorMessage, "Invalid Name", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
int lastNameLength = lastName.length();
if(lastNameLength == 0){
String errorMesssage = "Please Enter a Valid Last Name";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Name", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
int phoneLength = phone.length();
if(phoneLength != 10) {
String errorMesssage = "Please Enter a Valid Phone Number";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Phone Number", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
if(nbrVehicle < 1 || nbrVehicle > 10) {
String errorMesssage = "Please Enter a Number Between 1 & 10 for Your Order of Vehicles";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Vehicle Order", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
if(nbrTanks != 2 && nbrTanks != 4 && nbrTanks != 8 && nbrTanks != 10 && nbrTanks != 15 && nbrTanks != 20){
String errorMesssage = "Please Enter Either 2, 4, 8, 10, 15, or 20 for Your Order of Tanks";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Number of Tanks", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}
}
}
}
}
//Create a customer Object
//CustomerObject variableName = new CustomerObject(arguments)
HayloCustomer customer = new HayloCustomer (firstName, lastName, phone, nbrVehicle, nbrTanks, total);
//Present the customer with a choice of vehicles
String[] choices = {"EV-EX 4", "EV-EX 6", "EV-DX 9", "EV-DX 12", "EV-SX 13"};
int response = JOptionPane.showOptionDialog(
null // center over parent
, "Select a Vehicle type and Number of Fuel Cells" // message
, "Vehicle & Fuel Cell Selection" // title in title bar
, JOptionPane.YES_NO_OPTION // Option type
, JOptionPane.PLAIN_MESSAGE // messageType
, null // icon
, choices // Options
, "APS 24" // initial value
);
//get the selection from the customer
StringTokenizer tkVehicle= new StringTokenizer(choices[response]);
//populate the vehicle variables
String vehicleType;
int nbrCells;
int costVehicle;
int tankCost;
//while (tkVehicle.hasMoreTokens());
vehicleType = tkVehicle.nextToken();
nbrCells = Integer.parseInt(tkVehicle.nextToken());
costVehicle = Integer.parseInt(tkVehicle.nextToken());
tankCost = Integer.parseInt(tkVehicle.nextToken());
//Create our vehicle object
//VehicleObject variableName = new VehicleObject(arguments)
HayloVehicle vehicleFactory = new HayloVehicle(vehicleType, nbrCells, costVehicle, tankCost);
//Create our factory object
//FactoryObject factoryVariableName = new FactoryObject(customerObjectVariable, vehicleObjectVariable);
HayloFactory factory = new HayloFactory(customer, vehicleFactory);
//ask the object to process the order
//factoryVariableName.process();
customer.toString();
vehicleFactory.toString();
factory.process();
factory.toString();
//write code below to display the result for each order
JOptionPane.showMessageDialog(null, factory.getSummary());
}while (JOptionPane.showConfirmDialog(null, "Enter More Orders?") == JOptionPane.YES_OPTION);
//write code below to display the summary for all the orders
JOptionPane.showMessageDialog(null, HayloFactory.salesSummary());
}
/**
*@param args
*/
公共静态void main（字符串[]args）{
//创建变量以保存从用户收集的信息
字符串firstName=null；
字符串lastName=null；
字符串phone=“”；
int=0；
int=0；
双倍合计=0；
做{
//收集用户在中输入的数据
//变数
String customerMessage=“请输入以下内容，以空格分隔”
+“\n\n”
+“-客户名\n”
+“-客户姓氏\n”
+“-客户电话\n”
+“-车辆数量\n”
+“-储罐数量”
+“\n\n”
+“示例：荷马·辛普森9094559384 5 8\n\n”
;
StringTokenizer TKCCustomer=新StringTokenizer(
showInputDialog（customerMessage））；
while（tkCustomer.hasMoreTokens（））{
//将每个令牌存储在相应的变量中
//确保我们格式化了整数
//variablename=tkCustomer.nextToken（）；
firstName=tkCustomer.nextToken（）；
lastName=tkCustomer.nextToken（）；
phone=tkCustomer.nextToken（）；
nbrvicer=Integer.parseInt（tkCustomer.nextToken（））；
nbrTanks=Integer.parseInt（tkCustomer.nextToken（））；
}
//验证此处输入的每个数据
int firstNameLength=firstName.length（）；
if（firstNameLength==0）{
String errorMessage=“请输入有效的名字”；
showMessageDialog（null，errorMessage，“无效名称”，JOptionPane.ERROR\u消息）；
系统出口（0）；
}否则{
int lastName length=lastName.length（）；
如果（lastNameLength==0）{
String ErrorMessage=“请输入有效的姓氏”；
showMessageDialog（null，errorMessage，“无效名称”，JOptionPane.ERROR\u消息）；
系统出口（0）；
}否则{
int phoneLength=phone.length（）；
如果（phoneLength！=10）{
String ErrorMessage=“请输入有效的电话号码”；
JOptionPane.showMessageDialog（空，错误消息，“无效电话号码”，JOptionPane.ERROR_消息）；
系统出口（0）；
}否则{
如果（NBR车辆<1 | | NBR车辆>10）{
String ErrorMessage=“请为您的车辆订单输入一个介于1和10之间的数字”；
JOptionPane.showMessageDialog（null，错误消息，“无效的车辆订单”，JOptionPane.ERROR_消息）；
系统出口（0）；
}否则{
如果（NBR储罐！=2&&NBR储罐！=4&&NBR储罐！=8&&NBR储罐！=10&&NBR储罐！=15&&NBR储罐！=20）{
String ERRORMESSAGE=“请为您的坦克订单输入2、4、8、10、15或20”；
JOptionPane.showMessageDialog（null，ErrorMessage，“无效的坦克数量”，JOptionPane.ERROR_消息）；
系统出口（0）；
}
}
}
}
}
//创建客户对象
//CustomerObject variableName=新CustomerObject（参数）
Haylocastomer客户=新Haylocastomer（名字、姓氏、电话、NBR车辆、NBR坦克、总数）；
//为客户提供车辆选择
字符串[]选项={“EV-EX 4”、“EV-EX 6”、“EV-DX 9”、“EV-DX 12”、“EV-SX 13”}；
int response=JOptionPane.showOptionDialog(
空//居于父对象之上
，“选择车辆类型和燃料电池数量”//信息
，“车辆和燃料电池选择”//标题栏中的标题
，JOptionPane.YES\u NO\u选项//选项类型
，JOptionPane.PLAIN\u消息//消息类型
，空//图标
，选项//选项
，“APS 24”//初始值
);
//从客户那里获得选择
StringTokenizer tkVehicle=新的StringTokenizer（选项[response]）；
//填充车辆变量
字符串车辆类型；
int细胞；
运输工具；
国际油轮成本；
//while（tkVehicle.hasMoreTokens（））；
vehicleType=tkVehicle.nextToken（）；
nbrCells=Integer.parseInt（tkVehicle.nextToken（））；
costVehicle=Integer.parseInt（tkVehicle.nextToken（））；
tankCost=Integer.parseInt（tkVehicle.nextToken（））；
//创建我们的车辆对象
//VehicleObject variableName=新VehicleObject（参数）
HayloVehicle车辆工厂=新HayloVehicle（车辆类型、NBRCELL、costVehicle、tankCost）；
//创建我们的工厂对象
//FactoryObject factoryVariableName=新FactoryObject（CustomerObject变量，vehicleObjectVariable）；
HayloFactory=新HayloFactory（客户、车辆工厂）；
//要求对象处理订单
//factoryVariableName.process（）；
customer.toString（）；
vehicleFactory.toString（）；
factory.process（）；
factory.toString（）；
//在下面编写代码以显示每个订单的结果
showMessageDialog（null，factory.getSummary（））；
}while（JOptionPane.showConfirmDialog（null，“输入更多订单？”）==JOptionPane.YES\u选项）；
//在下面编写代码以显示总和
/**
* @param args
*/
public static void main(String[] args) {
//create variables to hold information collected from the user
String firstName = null;
String lastName = null;
String phone = "";
int nbrTanks = 0;
int nbrVehicle = 0;
double total = 0;
do{
//collect the data entered by the user in
//variables
String customerMessage = "Please enter the following separated by spaces"
+ "\n\n"
+ "- Customer First Name\n"
+ "- Customer Last Name\n"
+ "- Customer Phone\n"
+ "- Number of Vehicles\n"
+ "- Number of Tanks"
+ "\n\n"
+ "Example: Homer Simpson 9094559384 5 8\n\n"
;
StringTokenizer tkCustomer = new StringTokenizer(
JOptionPane.showInputDialog(customerMessage));
while (tkCustomer.hasMoreTokens()){
//store each token in the corresponding variable
//Make sure we format integers
//variablename = tkCustomer.nextToken();
firstName = tkCustomer.nextToken( );
lastName = tkCustomer.nextToken ( );
phone = tkCustomer.nextToken ( );
nbrVehicle = Integer.parseInt(tkCustomer.nextToken( ));
nbrTanks = Integer.parseInt(tkCustomer.nextToken( ));
}
//validate each data entered here
int firstNameLength = firstName.length();
if(firstNameLength == 0){
String errorMessage = "Please Enter a Valid First Name";
JOptionPane.showMessageDialog(null, errorMessage, "Invalid Name", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
int lastNameLength = lastName.length();
if(lastNameLength == 0){
String errorMesssage = "Please Enter a Valid Last Name";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Name", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
int phoneLength = phone.length();
if(phoneLength != 10) {
String errorMesssage = "Please Enter a Valid Phone Number";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Phone Number", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
if(nbrVehicle < 1 || nbrVehicle > 10) {
String errorMesssage = "Please Enter a Number Between 1 & 10 for Your Order of Vehicles";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Vehicle Order", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}else{
if(nbrTanks != 2 && nbrTanks != 4 && nbrTanks != 8 && nbrTanks != 10 && nbrTanks != 15 && nbrTanks != 20){
String errorMesssage = "Please Enter Either 2, 4, 8, 10, 15, or 20 for Your Order of Tanks";
JOptionPane.showMessageDialog(null, errorMesssage, "Invalid Number of Tanks", JOptionPane.ERROR_MESSAGE);
System.exit(0);
}
}
}
}
}
//Create a customer Object
//CustomerObject variableName = new CustomerObject(arguments)
HayloCustomer customer = new HayloCustomer (firstName, lastName, phone, nbrVehicle, nbrTanks, total);
//Present the customer with a choice of vehicles
String[] choices = {"EV-EX 4", "EV-EX 6", "EV-DX 9", "EV-DX 12", "EV-SX 13"};
int response = JOptionPane.showOptionDialog(
null // center over parent
, "Select a Vehicle type and Number of Fuel Cells" // message
, "Vehicle & Fuel Cell Selection" // title in title bar
, JOptionPane.YES_NO_OPTION // Option type
, JOptionPane.PLAIN_MESSAGE // messageType
, null // icon
, choices // Options
, "APS 24" // initial value
);
//get the selection from the customer
StringTokenizer tkVehicle= new StringTokenizer(choices[response]);
//populate the vehicle variables
String vehicleType;
int nbrCells;
int costVehicle;
int tankCost;
//while (tkVehicle.hasMoreTokens());
vehicleType = tkVehicle.nextToken();
nbrCells = Integer.parseInt(tkVehicle.nextToken());
costVehicle = Integer.parseInt(tkVehicle.nextToken());
tankCost = Integer.parseInt(tkVehicle.nextToken());
//Create our vehicle object
//VehicleObject variableName = new VehicleObject(arguments)
HayloVehicle vehicleFactory = new HayloVehicle(vehicleType, nbrCells, costVehicle, tankCost);
//Create our factory object
//FactoryObject factoryVariableName = new FactoryObject(customerObjectVariable, vehicleObjectVariable);
HayloFactory factory = new HayloFactory(customer, vehicleFactory);
//ask the object to process the order
//factoryVariableName.process();
customer.toString();
vehicleFactory.toString();
factory.process();
factory.toString();
//write code below to display the result for each order
JOptionPane.showMessageDialog(null, factory.getSummary());
}while (JOptionPane.showConfirmDialog(null, "Enter More Orders?") == JOptionPane.YES_OPTION);
//write code below to display the summary for all the orders
JOptionPane.showMessageDialog(null, HayloFactory.salesSummary());
}