Input and output with human-readable text files

import java.io.FileReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.StreamTokenizer;

public class InputOutputDemo {

  public static void main(String[] a) throws Exception {
    PrintWriter pwr = new PrintWriter(new FileWriter("java2s.txt"));
    pwr.print(4711);
    pwr.print(' ');
    pwr.print("Java Source and Support at www.java2s.com");
    pwr.close();

    StreamTokenizer stok = new StreamTokenizer(new FileReader("java2s.txt"));
    int tok = stok.nextToken();
    while (tok != StreamTokenizer.TT_EOF) {
      System.out.println(stok.sval);
      tok = stok.nextToken();
    }
  }
}

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Input and output with human-readable text files : Input Output Stream « File Input Output « Java

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