如何将 String 转换为 TextField、javaFX。从孩子班答案

【问题标题】：How can I convert String into TextField, javaFX. from the child class如何将 String 转换为 TextField、javaFX。从孩子班
【发布时间】：2020-11-27 14:22:07
【问题描述】：

我想为 Faculty 类（FacultyApp 的子类）创建一个对象，我可以在其中输入一些值

错误：不兼容的类型：字符串无法转换为 TextField 教员教员=新教员（“”，“”，“”）；

FXMLDocumentController

公共类 FXMLDocumentController 实现 Initializable {

private Label label;
@FXML
private TextField employeeName;
@FXML
private TextField employeeTitle;
@FXML
private TextField emailAddress;
@FXML
private Button SaveButton;




@Override
public void initialize(URL url, ResourceBundle rb) {
    // TODO
}    
public void setNAME(TextField employeeName) {
     employeeName.getText();    
}
public void setADDRESS(TextField emailAddress) {
    emailAddress.getText();
}
public void setTITLE(TextField employeeTitle) {

employeeTitle.getText();
}

@FXML
private void saveInfo(ActionEvent event) {
    Faculty faculty = new Faculty(" ", " ", " ");
    String textField = new TextField().toString();
    faculty.setNAME(employeeName);
    faculty.setADDRESS(emailAddress);
    faculty.setTITLE(employeeTitle);
    
    String message = "YOUR INPUT HAS BEEN SAVED";
    Alert a = new Alert(AlertType.INFORMATION); 
    a.setContentText(message +"\nEmployee Name: "+employeeName +"\nEmployee Title: "+ employeeTitle +"\nEmail Address: " + emailAddress);
    a.show();  
    
}

}

childClass from MainClass

公共类 Faculty 扩展了 FacultyApp{ 私有 TextField 标题、名称、地址；

public Faculty (TextField employeeName, TextField emailAddress, TextField employeeTitle){
    title = employeeTitle;
    name = employeeName;
    address = emailAddress;
}

public void setNAME(TextField employeeName) {
    name = employeeName;
}
public TextField  getNAME(){
    return name;
}
public void setADDRESS(TextField emailAddress) {
    address = emailAddress;
}
public TextField getADDRESS(){
    return address;
}

public void setTITLE(TextField employeeTitle) {
    title = employeeTitle;
}
public TextField getTITLE(){
    return title;
}

}

【问题讨论】：

a) 不要传递节点（用于数据），而是对数据进行建模，使其不知道在哪里/如何可视化 b) 请使用 java 命名约定 c) 花点时间格式化你的代码！ d) 完成有关 java 语言基础的教程 .. （类似 new TextField().toString 完全是 .. [审查] - 你希望发生什么？）

标签： java javafx netbeans scenebuilder

【解决方案1】：

您的 Faculty 类的构造函数需要 3 个 TextField 类型的参数，但您试图传递 3 个 String 对象。

既然你使用了setter，为什么不移除当前的构造函数，使用默认构造函数创建一个新的Faculty对象呢？

所以从Faculty 类中删除它：

public Faculty (TextField employeeName, TextField emailAddress, TextField employeeTitle){
    title = employeeTitle;
    name = employeeName;
    address = emailAddress;
}

并在FXMLDocumentController 更改

Faculty faculty = new Faculty(" ", " ", " ");

进入

Faculty faculty = new Faculty();

【讨论】：