Scanning text with java.util.Scanner : Scanner « File Input Output « Java






  1. Java
  2. File Input Output
  3. Scanner

Scanning text with java.util.Scanner

 
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;

public class Main {
  private static void readFile(String fileName) throws Exception {
    File file = new File(fileName);
    FileReader reader = new FileReader(file);
    BufferedReader in = new BufferedReader(reader);
    String string;
    while ((string = in.readLine()) != null) {
      System.out.println(string);
    }
    in.close();
  }

  public static void main(String[] args) throws Exception {
    if (args.length != 1) {
      System.err.println("usage: java TextReader " + "file location");
      System.exit(0);
    }
    readFile(args[0]);
  }
}








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