Translating PHP over to Java (Strange {})

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So I'm trying to translate this code over to Java. $len is an int, $offset is an int, and $buffer is a String. What do the {} mean and how would I translate those over to Java code?

for(; $len > 0; --$len, ++$this->offset){
            $buffer .= @$this->buffer{$this->offset};
}

asked 30 secs ago

Joshua Garde

1

Translating PHP over to Java (Strange {})