如何将表单字段放入列表中以便能够遍历它们？

Question

我想使用 ArrayList 遍历此表单的字段，但我不知道该怎么做。

表格图片如下：

这是代码：

    private void btnTotalActionPerformed(java.awt.event.ActionEvent evt) {                                         
    // TODO add your handling code here:


 double index=Double.parseDouble(txtIndexNou.getText())-      Double.parseDouble(txtIndexVechi.getText());
 txtIndexTotal.setText(Double.toString(index));
 txtCam1.setText(Double.toString(index));
 txtTotal1.setText(Double.toString((index *a)));

 double index1=Double.parseDouble(txtIndexNou2.getText())-Double.parseDouble(txtIndexVechi2.getText());
 txtIndexTotal.setText(Double.toString(index1));
 txtCam1.setText(Double.toString(index1));
 txtTotal1.setText(Double.toString((index1 *a))); 

 double index2=Double.parseDouble(txtIndexNou3.getText())-Double.parseDouble(txtIndexVechi3.getText());
 txtIndexTotal.setText(Double.toString(index2));
 txtCam1.setText(Double.toString(index2));
 txtTotal1.setText(Double.toString((index2 *a)));

 double index3=Double.parseDouble(txtIndexNou4.getText())-Double.parseDouble(txtIndexVechi4.getText());
 txtIndexTotal.setText(Double.toString(index3));
 txtCam1.setText(Double.toString(index3));
 txtTotal1.setText(Double.toString((index3 *a)));

 double index4=Double.parseDouble(txtIndexNou5.getText())-Double.parseDouble(txtIndexVechi5.getText());
 txtIndexTotal.setText(Double.toString(index4));
 txtCam1.setText(Double.toString(index4));
 txtTotal1.setText(Double.toString((index4 *a)));
}

Answer 1

txtIndexNou 和 txtIndexVechi 我认为是某种文本输入必须用循环创建并且引用存储在 ArrayList 中, 然后当你想读回它们的值时，只需遍历列表即可。

编辑 1

要优化代码重复，您可以将您的逻辑封装到一个方法中。

Answer 2

不需要列表。我相信您想要做的是减少代码重复。您需要做的就是创建一个单独的方法来执行您正在复制的所有员工：

public void doStuff(String input1, String input2){
double index=Double.parseDouble(input1)-Double.parseDouble(input2);
 txtIndexTotal.setText(Double.toString(index));
 txtCam1.setText(Double.toString(index));
 txtTotal1.setText(Double.toString((index*a)));
}

然后调用它：

doStuff(txtIndexNou.getText(), txtIndexVechi.getText());
doStuff(txtIndexNou2.getText(), txtIndexVechi2.getText());
doStuff(txtIndexNou3.getText(), txtIndexVechi3.getText());
doStuff(txtIndexNou4.getText(), txtIndexVechi4.getText());
doStuff(txtIndexNou5.getText(), txtIndexVechi5.getText());

如何将表单字段放入列表中以便能够遍历它们？

How do I put the form fields into a list to be able to iterate through them?

java

arrays

swing

jformattedtextfield

编辑 1