Java IO Tutorial - Java StreamTokenizer .eolIsSignificant (boolean flag)

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Syntax

StreamTokenizer.eolIsSignificant(boolean flag) has the following syntax.

public void eolIsSignificant(boolean flag)

Example

In the following code shows how to use StreamTokenizer.eolIsSignificant(boolean flag) method.

//from   w  ww.  j  a v a2 s.c  om

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.StreamTokenizer;

public class Main {

  public static void main(String args[]) {

    try {
      FileReader fr = new FileReader(args[0]);

      BufferedReader br = new BufferedReader(fr);

      StreamTokenizer st = new StreamTokenizer(br);

      // Consider end-of-line as a token
      st.eolIsSignificant(true);

      // Declare variable to count lines
      int lines = 1;

      // Process tokens
      while (st.nextToken() != StreamTokenizer.TT_EOF) {
        switch (st.ttype) {
        case StreamTokenizer.TT_EOL:
          ++lines;
        }
      }

      System.out.println("There are " + lines + " lines");

      fr.close();
    } catch (Exception e) {
      System.out.println("Exception: " + e);
    }
  }
}
      

The code above generates the following result.

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