FileReader01.java

import java.io.*;

public class FileReader01 {

    public static void main(String[] args)  {

        File file = null;

        FileReader fReader = null;  

        try {

            fReader = new FileReader("temp.txt");

            int data = fReader.read();

            while(data != -1) {

                System.out.print((char) data);

                data = fReader.read();

            };

        } catch(Exception e) {

            e.printStackTrace();

        }

        try {

            fReader.close();

        } catch(Exception e) {

            e.printStackTrace();

        }   

    }

}

contents of temp.txt

Hello World

Hello

World

FileReader02.java

import java.io.*;

public class FileReader02 {

    public static void main(String[] args) throws IOException  {

        File file = null;

        FileReader fReader = null;  

        fReader = new FileReader("temp.txt");

        int data = fReader.read();

        while(data != -1) {

            System.out.print((char) data);

            data = fReader.read();

        };

        fReader.close();

    }

}

contents of temp.txt

Hello World

Hello

World