public class Logger extends PrintStream {
    static int count;
    String directory = "D:/Checknewfiles";
    FileWriter output_file;

    public Logger(OutputStream out) {
        super(out);
        try{
            this.output_file =  new FileWriter(new File(directory,"log1.txt"));
        }catch (IOException err){
            System.out.println("Can't create file");
        }
    }
    public void print(String s){
        String forPrinting = count + ": "+ s;
        super.print(forPrinting);
        try {
            output_file.write(forPrinting);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    public void println(String s){
        String forPrinting = ++count + ": "+ s;
        super.println(forPrinting);
        try {
            output_file.write(forPrinting);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

import logger.Logger;

public class Main {
    public static void main(String[] args) {
        System.setOut(new Logger(System.out));
        System.out.print("Compute 1/2 ...");
        System.out.println("; result: " +(1/2));
        try {
            int a = 27 / 0;
        }
        catch (ArithmeticException err){
            System.out.println("Something goes wrong");
        }
        System.out.println("Done computing");
    }
}