CODEWITHSUNDEEP
java
Kieran
Kieran

Reputation: 21

Removing spaces between letters and double spaces between words

I need to remove all the spaces between letters and make the double spaces into single spaces between the words.

So this (double spaces between words):

h e l l o m y n a m e i s b o b

Will need to become this:

hello my name is bob

I've tried
temp = "h e l l o m y n a m e i s b o b"
temp = temp.trim().replaceAll("\\s", "");
but it just removes all the spaces.

I managed to make it work by doing:
temp = temp.replace(" ", ".");
temp = temp.replace(" ", "");
temp = temp.replace(".", " ");
But I would like a simpler way of doing it.

Upvotes: 2

Views: 118

Answers (3)

Stephen Buttolph
Stephen Buttolph

Reputation: 643

You should use the regex \s(?!\s). This basically says anything that is a space but doesn't have a space after it.

This would be used like this:

temp =  "h e l l o  m y  n a m e  i s  b o b";
temp = temp.replaceAll("\\s(?!\\s)", "");
System.out.println(temp);

Outputs: hello my name is bob

Hope this helps :)

Upvotes: 3

waltersu
waltersu

Reputation: 1231

try this

temp = temp.trim().replaceAll("(?<!\\s)\\s(?!\\s)", "");
temp = temp.replaceAll("\\s+", " ");

Upvotes: 0

Jaskaranbir Singh
Jaskaranbir Singh

Reputation: 2034

A simpler, more elegant way that does not include messing around with regex.

String yourString = "a s d  d g d d d  g g";
String finalstr = "";

for (String s: yourString.split(" ")) {
    if (s.equals(""))
        s = " ";
    finalstr += s;
}
System.out.println(finalstr);

Output: asd dgddd gg

Upvotes: 0

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