Question

  //this is the button that add objects to the table cells

@FXML
private void OK01(ActionEvent event) 
{
 rImg20.setVisible(false);
 tv.setVisible(true);


 String combo022 = combo02.getValue().toString();
 Integer result = Integer.valueOf(prCombo01.getText());
 del01.setVisible(true);

 data.add(new InvoiceEntry(
 (String) combo01.getValue(),
 combo022,   
 (String) combo03.getValue(),
 (String) combo04.getValue(),

 (Integer)prCombo01.getText()));       //but i cant get this label to add to the    
                                                                 integer column (price) of the table 
}

我已经编写了每个应该发生这种情况的代码，例如... InvoiceEntry.java及其.fxml。请大家帮帮我＃34;请问我如何解决这个问题＆＃34;。我可以告诉你其他代码，如果你想，因为我不知道我怎么能一次发布所有堆栈交换

这是代码的完成。

InvoiceEntry.java

import javafx.beans.property.SimpleIntegerProperty;
import javafx.beans.property.SimpleStringProperty;
import javafx.scene.control.TableColumn;

public class InvoiceEntry 
{
private final SimpleStringProperty clothe;
private final SimpleStringProperty pattern;
private final SimpleStringProperty designer;
private final SimpleStringProperty color;
private final SimpleIntegerProperty price;


public InvoiceEntry(
String clothe,
String pattern,
String designer,
String color,
Integer price
) 

{
this.clothe = new SimpleStringProperty( clothe );
this.pattern = new SimpleStringProperty( pattern);
this.designer = new SimpleStringProperty( designer );
this.color = new SimpleStringProperty( color );
this.price = new SimpleIntegerProperty( price );
}

public String getClothe() 
{
return clothe.get();
}

public void setClothe(String iName) 
{
this.clothe.set( iName );
}

public String getPattern() 
{
return pattern.get();
}

public void setPattern(String iName) 
{
this.pattern.set( iName );
}


public String getDesigner() 
{
return designer.get();
}

public void setDesigner(String iName) 
{
this.designer.set( iName );
}

public String getColor() 
{
return color.get();
}

public void setColor(String iName) 
{
this.color.set( iName );
}

public Integer getPrice() 
{
return price.get();
}

public void setPrice(Integer iName) 
{
this.price.set( iName );
}
}

FXML

@FXML
private TableView tv;
@FXML
private TableColumn<InvoiceEntry, String> clothe;
@FXML
private TableColumn<InvoiceEntry, String> pattern;
@FXML
private TableColumn<InvoiceEntry, String> designer;
@FXML
private TableColumn<InvoiceEntry, String> color;
@FXML
private TableColumn<InvoiceEntry, Integer> price;
@FXML
private ComboBox combo01;
@FXML
private ColorPicker combo02;
@FXML
private ComboBox combo03;
@FXML
private ComboBox combo04;
@FXML
private Label prCombo01;

private ObservableList<InvoiceEntry> data;



@Override
public void initialize(URL url, ResourceBundle rb) 
{
    clothe.setCellValueFactory(
    new PropertyValueFactory<InvoiceEntry, String>("clothe") );

    pattern.setCellValueFactory(
    new PropertyValueFactory<InvoiceEntry, String>("pattern") );

    designer.setCellValueFactory(
    new PropertyValueFactory<InvoiceEntry, String>("designer") );

    color.setCellValueFactory(
    new PropertyValueFactory<InvoiceEntry, String>("color") );

    price.setCellValueFactory(
    new PropertyValueFactory<InvoiceEntry, Integer>("price") );



    data = FXCollections.observableArrayList(
    new InvoiceEntry("", "", "", "", 0));
    tv.setItems(data);
}



//this is the button that adds objects to the table cells
@FXML
private void OK01(ActionEvent event) 
{
     rImg20.setVisible(false);
     tv.setVisible(true);


      String combo022 = combo02.getValue().toString();
      Integer result = Integer.valueOf(prCombo01.getText());
      del01.setVisible(true);

      data.add(new InvoiceEntry(
                    (String) combo01.getValue(),
                     combo022,   
                    (String) combo03.getValue(),
                    (String) combo04.getValue(),

                    (Integer)prCombo01.getText()));//but i cant get this label to add to the 
                                                                              integer column (price) of the table 


}

Answer 1

Java是一种强类型语言，您不能只将String强制转换为Integer，但是您可以使用Integer.parseInt但是您应该准备好解析可能会使用{{1}如果string实际上不是整数。

还有一件事，“价格”可能不是NumberFormatException / int，很可能你想要使用BigDecimal代替（但是，请，请永远不要使用{{ 1}} / Integer或double / Double与金钱有关的任何事情！）。可以使用this constructor

从float创建Float

我正在尝试使用javafx构建收据应用程序....如何在按钮单击时将标签对象添加到整数表字段

1 个答案: