在Java中的字符串字符之间添加空格? [英] Add spaces between the characters of a string in Java?

问题描述

我只想在字符串的每个字符之间添加一个空格.谁能帮我弄清楚该怎么做?

I just want to add a space between each character of a string. Can anyone help me figuring out how to do this?

例如给定"JAYARAM"，我需要"J A Y A R A M"作为结果.

E.g. given "JAYARAM", I need "J A Y A R A M" as the result.

推荐答案

除非您要遍历字符串并手动"执行操作，否则可以这样解决:

Unless you want to loop through the string and do it "manually" you could solve it like this:

yourString.replace("", " ").trim()

这会将所有空子字符串"替换为一个空格，然后修剪掉前导/尾随空格.

This replaces all "empty substrings" with a space, and then trims off the leading / trailing spaces.

ideone.com演示

使用正则表达式的替代解决方案:

An alternative solution using regular expressions:

yourString.replaceAll(".(?=.)", "$0 ")

基本上说将所有字符(最后一个字符除外)替换为字符本身，后跟一个空格"..

ideone.com演示

...的文档

• 正面展望 (即，(?=.)语法)

• String.replaceAll (including the $0 syntax)
• The positive look ahead (i.e., the (?=.) syntax)

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