Java十进制格式问题？ [英] Java decimal format question?

问题描述

您好，我正在制作披萨计算器，但我的结果是7.5美元，而不是7.50美元。我有这个十进制格式的代码写在我的代码下面，但它似乎没有做任何事情。



有人可以帮助我吗？



我尝试过：



DecimalFormat x = newDecimalFormat（0.00） ;

costOutput.setText（披萨的成本是$+ totalCost）;

解决方案

7.5而不是

7.50。我的代码下面写了这个十进制格式代码，但它似乎没有做任何事情。



有人可以帮帮我吗？



我尝试了什么：



DecimalFormat x = newDecimalFormat（0.00）;

costOutput.setText（披萨的成本是

+ totalCost）;

Hello, I am making a pizza calculator but my results come out as "$7.5" and not "$7.50". I have this decimal format code written out with my code below it, but it doesn't seem to be doing anything.

can someone please help me?

What I have tried:

DecimalFormat x = newDecimalFormat("0.00");
costOutput.setText("The cost of the pizza is $" + totalCost);

解决方案

7.5" and not "

7.50". I have this decimal format code written out with my code below it, but it doesn't seem to be doing anything.

can someone please help me?

What I have tried:

DecimalFormat x = newDecimalFormat("0.00");
costOutput.setText("The cost of the pizza is

" + totalCost);

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