数值超出范围
当我保存数据时，它给出错误，即数值超出范围 我已将这 3 个字段作为 MS ACCESS DB 中的数据类型编号，
我的手机号码为 4343242434，我为此编写的代码是：
double mno= Long.parseLong(tfmno.getText());
len = tfmno.getText().length();
if(len!=10) {
JOptionPane.showMessageDialog(null,"Enter The 10 Digit Mobile No","Error",JOptionPane.ERROR_MESSAGE);
return;
}
我的 pin 码为：2222222，我的 pin 码代码为：
i
nt pincode=Integer.parseInt(tfpcd.getText());
len1 = tfpcd.getText().length();
if(len1!=7) {
JOptionPane.showMessageDialog(null,"Enter The 7 Digit Pin Code","Error",JOptionPane.ERROR_MESSAGE);
return;
}
和 i电话号码为：2222333，我的代码是：
int tele=Integer.parseInt(tftele.getText());
len2 = tftele.getText().length();
if(len2!=7){
JOptionPane.showMessageDialog(null,"Enter The 7 Digit Telephone No","Error",JOptionPane.ERROR_MESSAGE);
return;
}
告诉我哪个值正在执行，我应该做什么
when i am saving the data its giving the error i.e NUMERIC VALUE OUT OF RANGE
I HAVE TAKEN THIS 3 FIELD AS DATATYPE NUMBER IN MS ACCESS DB
i was taken the mobile no as 4343242434 and i have written code for this is:
double mno= Long.parseLong(tfmno.getText());
len = tfmno.getText().length();
if(len!=10) {
JOptionPane.showMessageDialog(null,"Enter The 10 Digit Mobile No","Error",JOptionPane.ERROR_MESSAGE);
return;
}
and i was taken the pin code as:2222222 and my code for pincode is:
i
nt pincode=Integer.parseInt(tfpcd.getText());
len1 = tfpcd.getText().length();
if(len1!=7) {
JOptionPane.showMessageDialog(null,"Enter The 7 Digit Pin Code","Error",JOptionPane.ERROR_MESSAGE);
return;
}
and i was taken the telephone no as:2222333 and my code for this is:
int tele=Integer.parseInt(tftele.getText());
len2 = tftele.getText().length();
if(len2!=7){
JOptionPane.showMessageDialog(null,"Enter The 7 Digit Telephone No","Error",JOptionPane.ERROR_MESSAGE);
return;
}
tell me which value is exeeding and what should i do instead
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评论（2）
您没有告诉我们 tftele 是什么，但从调用的方法来看，我猜测它是一个 JTextField。
如果是这样，您的问题是在第一个示例中，您正在获取
long值并分配给double。double是双精度浮点值，因此使用大量 64 位分配的内存来存储小数位后的值。将您的值存储在 double 中是没有意义的，特别是在它被解析为 long 之后（任何小数位都会引发异常）。我相信您的代码应该使用
long值，因为您将其解析为 long。另外，请考虑在执行 X.parseX(text); 时捕获 NumberFormatException；也有陈述；以防万一您的用户在文本字段中键入非数字值。
You didn't tell us what tftele was, but from the methods invoked, I'm going to guess it's a JTextField.
If so, your problem is that in the first example you are taking your
longvalue and assigning to adouble.A
doubleis a double-precision floating-point value, and as such uses a lot of it's 64-bits of allocated memory for storing values after the decimal place. There is no point in storing your value in a double, espessially after it has been parsed as a long (any decimal place would throw an exception anyways).I believe that your code should use a
longvalue since you parsed it as a long.Also, think about catching a NumberFormatException when you do the X.parseX(text); statements too; just in case your users type non-numeric values for the text field.
好吧，应用程序应该告诉您错误所在的字段/行。
但是，就像 Jack 已经告诉您的那样，可能是这一行：
double mno= Long.parseLong(tfmno.getText());顺便说一句，为什么不将值存储为文本？
Well, the application should tell you which field/line the error is in.
However, like Jack told you already, it's probably this line:
double mno= Long.parseLong(tfmno.getText());Btw, why don't you store the values as text?