JavaFile30

// file homework 25-90 all even tasks


package Workshop;
import java.io.*;
import java.io.IOException;
import java.util.*;
import java.io.FileNotFoundException;

public class Main {

    public static void main(String[] args) throws FileNotFoundException
    {
        BufferedReader br = null;
        BufferedReader br1 = null;
        try{
            br = new BufferedReader(new FileReader("src/Workshop/note.txt"));
            File file = new File("src/Workshop/output.txt");
            FileWriter fw = new FileWriter(file,true);
          BufferedWriter  bw = new BufferedWriter(new BufferedWriter(fw));
            System.out.println("Reading file: ");
            int cnt = 0;
            int index = 0;
            int min = 49;
            int max = 49;
            int sum=0;
            int[] arr = new int [20];

            //Reading
            while((cnt=br.read())!= -1){
                arr[index] = cnt;
                index++;
            }
            if(index%2!=0) throw new IllegalArgumentException("odd");
            System.out.println("Printing an array :");
            for (int value : arr) {
                System.out.print((char) value + " ");
            }
            //Writing: ...
            for (int j = 0; j < index/2; j++) {
                bw.write(arr[j]);
            }
            bw.close();
            System.out.println("Reading from output file: ");
            br1 = new BufferedReader(new FileReader("src/Workshop/output.txt"));
            while((cnt=br1.read())!= -1){
                System.out.print((char)cnt+" ");
            }
        }
        catch(IOException e){
            System.out.println("Exception thrown ");
            e.printStackTrace();
        }

    }
}