2
Example
String str = " texto com espaços em branco ";
Upshot
"text with white spaces"
2
Example
String str = " texto com espaços em branco ";
Upshot
"text with white spaces"
4
You can use a regular expression:
System.out.println(" texto com espaços em branco".replaceAll("\\s+", " "));
Upshot
text with white spaces
To also remove the spaces at the ends, you can first apply the Trim function():
System.out.println(" texto com espaços em branco".trim().replaceAll("\\s+", " "));
The idea is that regular expression \s
corresponds to any blank character.
If any pattern is followed by a +, it means that this pattern needs to appear 1 or more times. In this case, s+, house (match) with one or more consecutive blanks.
This information is then passed to the Replaceall function which replaces the consecutive spaces found, with only one blank.
I was just about to comment on that, I was getting some space behind the edges.
0
You can use the Scanner class
Scanner s = new Scanner(text);
String t = null;
while (s.hasNext()) {
if(t == null)
t = s.next();
else
t = t +" "+s.next();
}
System.out.println(t);
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Scanner is a class of Java, https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html
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at the ends with
String#trim()
, already have a recent question about him.– user28595
It is not only in the extremities, but also the spaces too.
– R3ing