What is StringTokenizer and when would we want to use it?
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What is StringTokenizer and when would we want to use it?
StringTokenizer class allows you to break a String into tokens. It is simple way to break a String. It is a legacy class of Java. It doesn’t provide the facility to differentiate numbers, quoted strings, identifiers etc.
What does StringTokenizer return?
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.
What is the default delimiter in StringTokenizer class?
StringTokenizer(String str): default delimiters like newline, space, tab, carriage return, and form feed.
How do I convert a string to an int in Java?
parseInt() to convert a string to an integer.
- Use Integer. parseInt() to Convert a String to an Integer. This method returns the string as a primitive type int.
- Use Integer. valueOf() to Convert a String to an Integer. This method returns the string as an integer object.
What is the purpose of StringTokenizer class write any two functions name of StringTokenizer class?
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.
How do I convert a string to an array in Java?
There are four ways to convert a String into String array in Java:
- Using String. split() Method.
- Using Pattern. split() Method.
- Using String[ ] Approach.
- Using toArray() Method.
How do you convert string to integer?
How do you split a string with multiple separators?
To split a string with multiple separators, pass a regular expression to the split() method. For example, str. split(/[-_]+/) splits the string on all occurrences of a hyphen or underscore. The split method will split the string on any match of the regular expression.
How do you use a tokenizer?
The String Tokenizer class allows an application to break strings into tokens. It implements the Enumeration interface. This class is used for parsing data….Methods Of StringTokenizer Class.
| Method | Action Performed |
|---|---|
| nextElement() | Returns an Object rather than String |
| hasMoreElements() | Returns the same value as hasMoreToken |
What are the various methods used in StringTokenizer class?
StringTokenizer Methods
- public boolean hasMoreTokens()
- public String nextToken()
- public int countTokens()
- public Object nextElement()
- public boolean hasMoreElements()
