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

[Raffaello Giulietti]

On Thu, 23 Feb 2023 13:13:43 GMT, Jim Laskey <jlaskey at openjdk.org> wrote:

> Add the ability to repeatedly append char and CharSequence data to StringBuilder/StringBuffer.

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;
}

-------------

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