Question

我希望从JTextField获取所有数据并将它们一起添加，然后将答案输出到文本文件中。

    static class Session implements ActionListener {
                public void actionPerformed (ActionEvent e){
    JButton submitInvoice = new JButton ("Submit");
                    sPanel.add(submitInvoice);
                    submitInvoice.addActionListener(e8->{
                        try{
                            BufferedWriter bw = new BufferedWriter(new FileWriter("RegInvoice.txt"));
                                bw.write("---------------Booking Invoice---------------");
                                bw.write("\r\n");
                                bw.write("All Day: "); bw.write(tSesh1.getText());
                                bw.write("\r\n");
                                bw.write("Morning: "); bw.write(tSesh2.getText());
                                bw.write("\r\n");
                                bw.write("Lunch: "); bw.write(tSesh3.getText());
                                bw.write("\r\n");
                                bw.write("Afternoon: "); bw.write(tSesh4.getText());
                                bw.write("\r\n");
                                bw.write("Pre School: "); bw.write(tSesh5.getText());
                                bw.write("\r\n");
                                bw.write("Full Holiday Care: "); bw.write(tSesh6.getText());
                                bw.close();
                        }catch(Exception ex){
                            ex.printStackTrace();
                        }
                    });
             }
   }

上面的代码采用tSesh1，tSesh2，tSesh3，tSesh4，tSesh5并将它们打印到文件中。但我需要将每个JTextField添加到一起。

Answer 1

您可以通过解析TEXTFIELD.getText（）返回的字符串来获取每个字段的整数值

int field1 = Integer.parseInt(TEXTFIELD1.getText());
int field2 = Integer.parseInt(TEXTFIELD2.getText());

您可以根据需要使用尽可能多的jTextField。然后，您可以使用整数进行必要的计算。

即

int total = field1 + field2;

基于JTextFields的计算

1 个答案: