How to concatenate strings in Java?

Question

The strKeyword will be repeated according to the loop. How can I Save the outcome as a new string. For example if the work "hello" was repeated twice, how would I now create the "hellohello" as a completely new string.

for (int l = 0; l < newKeywordLength; l++) {          
    System.out.print(strKeyword);
}

Eclipse has something to do here?

lkanab
– lkanab

2015-10-29 14:48:17 +00:00
Commented Oct 29, 2015 at 14:48 — lkanab
– lkanab, Commented Oct 29, 2015 at 14:48

Tiber · Accepted Answer · 2015-10-29 14:55:04Z

1

string newWord="";
for (int l=0; l<newKeywordLength; l++){           
         newWord+=strKeyword;
}
System.out.print(newWord);

answered Oct 29, 2015 at 14:55

Tiber

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Comments

gorefest · Accepted Answer · 2015-10-29 14:45:33Z

1

just use

strKeyword+=strKeyword;

since java 6 well optimized, no need for a stringbuilder

answered Oct 29, 2015 at 14:45

gorefest

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1 Comment

Rene M. Over a year ago

You got the one up for the advice that the compiler will optimize this starting with java 6.

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