Skip to content

Tag: complexity-theory

Java CharAt() and deleteCharAt() performance

I’ve been wondering about the implementation of charAt function for String/StringBuilder/StringBuffer in java what is the complexity of that ? also what about the deleteCharAt() in StringBuffer/StringBuilder ? Answer For String, StringBuffer, and StringBuilder, charAt() is a constant-time operation. For StringBuffer and StringBuilder, deleteCharAt() is a linear-time operation. StringBuffer and StringBuilder have very similar performance characteristics. The primary difference is