Fix the problem of using '+=' operator to concatenate strings in a loop #43
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…loop. The method is building a String using concatenation in a loop. In each iteration, the String is converted to a StringBuilder, appended to, and converted back to a String. This can lead to a cost quadratic in the number of iterations, as the growing string is recopied in each iteration. Better performance can be obtained by using a StringBuilder explicitly. http://findbugs.sourceforge.net/bugDescriptions.html#SBSC_USE_STRINGBUFFER_CONCATENATION
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merged, thanks! |
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The method is building a String using concatenation in a loop.
In each iteration, the String is converted to a StringBuilder, appended to, and converted back to a String.
This can lead to a cost quadratic in the number of iterations, as the growing string is recopied in each iteration.
Better performance can be obtained by using a StringBuilder explicitly.
http://findbugs.sourceforge.net/bugDescriptions.html#SBSC_USE_STRINGBUFFER_CONCATENATION