Why this output in this I/O program?

[John-Philippe Verger]

Hi all,

I 've written this program :

  
import java.io.*;

public class Test {


    public static void main(String[] args) throws IOException {
        File inputFile = new File("scjp.txt");      
        FileInputStream in = new FileInputStream (inputFile);
        int c;
        while ((c = in.read()) != -1) { System.out.println(c);}
        in.close();     
    }

}
  

In my file scjp.txt , I have typed the number 127 (it's all the content of the file scjp.txt).
When I run the program,I have this output :

49
50
55


I don't understand why I have this output. Please, why this output?


Thanks in advance for your answers.

[Ankur kothari]

dude its because you are printing the int value of the characters 1,2, and 7 which are 49,50and 55

[Ankur kothari]

if c was a character you would have got 127..but c here is a char

[Ankur kothari]

to be precise it had to be an array of char like char c[]..

[rohan yadav]

I think you should try this :

   import java.io.*;

public class Test11 {


    public static void main(String[] args) throws IOException {
         	File inputFile = new File("scjp.txt");      
        FileInputStream in = new FileInputStream (inputFile);
        int c;
        while ((c = in.read()) != -1) { System.out.println((char)c);}
        in.close();     
    }

}
   

cast c to char will solve your problem

[John-Philippe Verger]

Thanks you very much Ankur Khotari and Rohan Yadav .