如何用前导零格式化Java字符串？ [英] How to format a Java string with leading zero?

问题描述

例如：

 Apple
  

我想加上零填写8个字符：

 000Apple
  

我该怎么做？
code>（00000000+Apple）。substring（Apple.length（））

（工作，只要你的字符串不超过8个字符。）

Here is the String, for example:

"Apple"

and I would like to add zero to fill in 8 chars:

"000Apple"

How can I do so?

解决方案

In case you have to do it without the help of a library:

("00000000" + "Apple").substring("Apple".length())

(Works, as long as your String isn't longer than 8 chars.)

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