java/47_FileReader at main · PeiHui369/java · GitHub

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//FileReader= read the contents of a file as a stream of characters. One by one
//            read() returns an int value which contains the byte value
//            when read() returns -1. there is no more data to be read

<Main.java>
import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) {
        try {
            FileReader reader = new FileReader("art.txt");
            int data = reader.read();
            while (data != -1) {
                System.out.print((char) data);
                data = reader.read();
            }
            reader.close();
        }
        catch(FileNotFoundException e){
            e.printStackTrace();
            //e is just a variable
        }
        catch(IOException e){
            e.printStackTrace();
        }
    }
}

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