StringTokenizer in java
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This document discusses the java.util.StringTokenizer class which allows breaking a string into tokens. It describes the constructors and methods of StringTokenizer, including how to count, check for, and retrieve the next token. An example program demonstrates its use by tokenizing a sample string and outputting the results.
StringTokenizer in java
- 2. String tokenizers ● The java.util.StringTokenizer class allows an application to break a string into tokens. ● This class is a legacy class that is retained for compatibility reasons although its use is discouraged in new code. ● Its methods do not distinguish among identifiers, numbers, and quoted strings. ● This class methods do not even recognize and skip comments.
- 3. Constructors in String tokenizers Constructors Description StringTokenizer(String str) This constructor a string tokenzier for the specified string StringTokenizer(String str,String delim) This constructor constructs string tokenizers for the specified string StringTokenizer(String str, String delim, boolean returnDelims) This constructopr constructs a string tyokenizer for the specified string.
- 4. Methods in StringTokenizer Method Description Int countTokens() This method calculates the number of times that this tokenizer's nextToken method can be called before it generates an exception Boolean hasMoreElements() This method returns the same value as the hasMoreTokens method Boolean hasMoreTokens() This method tests if there are more tokens available from this tokenizer's string Object nextElement() This method returns the same value as the nextToken method, except that its declared return value is Object rather than string String nextToken() This method returns the next token from this string tokenizer String nextToken(String delim) This method returns the next token in this string tokenizer's string