RFR: JDK-8302323 Add repeat methods to StringBuilder/StringBuffer

[Raffaello Giulietti]

On Thu, 23 Feb 2023 15:32:36 GMT, Jim Laskey <jlaskey at openjdk.org> wrote:

>> src/java.base/share/classes/java/lang/AbstractStringBuilder.java line 1851:
>> 
>>> 1849:             while (count-- != 0) {
>>> 1850:                 value[index++] = (byte) c;
>>> 1851:             }
>> 
>> One could reduce to just one running var rather than two:
>> 
>> int index = this.count;
>> int limit = index + count;
>> for (; index != limit; ++index) {
>>     value[index] = (byte) c;
>> }
>
> True.  Will test to see if there is any performance benefit.

Apart from perf, the less "moving parts" there are, the better I personally understand code ;-)

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PR: https://git.openjdk.org/jdk/pull/12728