java trim() issue

hi guys

In my code i have

DetailVO obj =;	
String name = obj.getName();
String trimmedName = obj.getName().trim();
System.out.println("name>>>"+name);  //prints  MICHEL, JEFF
System.out.println("trimmedName>>>"+trimmedName); //prints  MICHEL, JEFF

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Any idea why trimmedName doesnt show trimmed spaces?

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CPColinSenior Java ArchitectCommented:
String.trim() trims the whitespace from the start and end of the string only, not the middle.

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royjaydAuthor Commented:
any idea how i can get a completely trimmed string like >>MICHEL,JEFF
CPColinSenior Java ArchitectCommented:
You would have to do something like this:

Construct a StringBuilder
Iterate over each character in the string
Add it to the StringBuilder if Character.isWhitespace() returns false
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royjaydAuthor Commented:
well, how about a simple string.replace(" ","").trim()
Does using StringBuilder give me any performance benefit ?

CPColinSenior Java ArchitectCommented:
String.replace() will likely do more work than using the StringBuilder yourself, but you're right that it should give you the result you want.
well, how about a simple string.replace(" ","").trim()
That's what i'd do. You're right to favour replace over replaceAll too
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