Read a file using StreamTokenizer

This is an example of how to read a File using the StreamTokenizer. The StreamTokenizer class takes an input stream and parses it into “tokens”, allowing the tokens to be read one at a time. Reading a File using the StreamTokenizer implies that you should:

• Create a new FileReader.
• Create a new StreamTokenizer that parses the given fileReader.
• Iterate over the tokens of the tokenizer and print their values, using sval method of StreamTokenizer that contains a string giving the characters of the word token.
• Close the fileReader.

Let’s take a look at the code snippet that follows:

package com.javacodegeeks.snippets.core;

import java.io.FileReader;
import java.io.Reader;
import java.io.StreamTokenizer;

public class StreamTokenizerExample {

    public static void main(String[] args) throws Exception {

  Reader freader = new FileReader("C:/Users/nikos7/Desktop/output.txt");

  StreamTokenizer tokeziner = new StreamTokenizer(freader);

  while (tokeziner.nextToken() != StreamTokenizer.TT_EOF) {

System.out.println(tokeziner.sval);
  }
  freader.close();
    }
}

Output:

.
.
.
null
Scalate
template
engine
using
working
directory
null
null
info
null
Started
SelectChannelConnector
null
null
null
.
.
.

 
This was an example of how to read a File using the StreamTokenizer in Java.