StringTokenizer Class in Java
StringTokenizer class in Java is used to break a string into tokens. A StringTokenizer object internally maintains a current position within the string to be tokenized. Some operations advance this current position past the characters processed. A token is returned by taking a substring of the string that was used to create the StringTokenizer object.
Constructors of StringToken: Let us consider ‘str’ is the string to be tokenized
- StringTokenizer(String str): default delimiters like newline, space, tab, carriage return, and form feed.
- StringTokenizer(String str, String delim): delim is a set of delimiters that are used to tokenize the given string.
- StringTokenizer(String str, String delim, boolean flag): The first two parameters have the same meaning wherein The flag
serves the following purpose.
3.1: If the flag is false, delimiter characters serve to separate tokens
Input : if string --> "hello geeks" and Delimiter is " ", then Output: tokens are "hello" and "geeks".
3.2: If the flag is true, delimiter characters are considered to be tokens.
Input : String --> is "hello geeks"and Delimiter is " ", then Output: Tokens --> "hello", " " and "geeks".
Methods Of StringTokenizer Class
|countTokens()||Returns the total number of tokens present|
|hasMoreToken()||Tests if tokens are present for the StringTokenizer’s string|
|nextElement()||Returns an Object rather than String|
|hasMoreElements()||Returns the same value as hasMoreToken|
|nextToken()||Returns the next token from the given StringTokenizer.|
Using Constructor 1 - Hello Geeks How are you Using Constructor 2 - JAVA Code String Using Constructor 3 - JAVA : Code : String
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