Remove unneeded and superfluous whitespaces

Here is a very small and simple code to remove superfluous whitespaces (leading, in between but leave at least one and at the end).

 

String test = ” Hello   World  here I    am.  “;

test = test.replaceAll(“\\s+”, ” “).trim();

Result is: “Hello World here I am.”;

 

I have seen a lot of other implementations that will also work. But they often use the regex package, which produces too much overhead and is not needed for such small issue.

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