15. String methods

• Methods for manipulating strings:

  
  length()
  indexOf(String) // first occurence of the String
  indexOf(String, startIndex) // occurence of the String
  lastIndexOf(String) // last occurence of the String
  lastIndexOf(String, startIndex)
  trim() // remove white space
  substring(startIndex)
  substring(startIndex, endIndex)
  replace(oldChar, newChar) // replaces all instances of oldChar
  split(delimiter) // returns array of substrings
  charAt(index)
  equals(String) // compares data
  equalsIgnoreCase(String)
  startsWith(String) // true if String matches
  startsWith(String, startIndex) // true if match after startIndex
  endsWith(String) // true if String matches at the end
  isEmpty()
  compareTo(String)
  compareToIgnoreCase(String)