# replace method

StringBuilder replace(

1. int start,
2. int end,
3. String str

)

Replaces characters in the specified range with the given string.

`start` the starting index (inclusive) `end` the ending index (exclusive) `str` the replacement string Returns this StringBuilder for method chaining

## Implementation

    StringBuilder replace(int start, int end, String str) {
      delete(start, end);
      insert(start, str);
      return this;
    }