How to save output in a file

Question

My proggy
import java.io.*;
public class temp
    public static void main (String [] args) throws Exception
        DataInput keyboard = new DataInputStream (System.in);
        int num = 0;
        String temp;
        String [] ques;
        String [] a, b, c, d, e;
        String [] ans;
        ques = new String [5];
        ques [0] = "(1) Which one of the following is an input device?";
        ques [1] = "(2) Which one of the following is an output device?";
        ques [2] = "(3)What does CPU stand for?";
        ques [3] = "(4)How many bytes in a megabyte";
        ques [4] = "(5)How many bytes in a gigabyte ?";
        a = new String [5];
        a [0] = "a) Printer";
        a [1] = "b) Monitor";
        a [2] = "c) Mouse";
        a [3] = "d) Speaker";
        b = new String [4];
        b [0] = "a) Mouse";
        b [1] = "b) Keyboard";
        b [2] = "c) Scanner";
        b [3] = "d) Speaker";
        c = new String [4];
        c [0] = "a) It does not stand for anything";
        c [1] = "b) Centeral Processing Unit";
        c [2] = "c) DUH!!!";
        c [3] = "d) City Power Unit";
        d = new String [4];
        d [0] = "a) 1";
        d [1] = "b) 1024";
        d [2] = "c) 4096";
        d [3] = "d) 1,048,576";
        e = new String [4];
        e [0] = "a) about 1 thousand";
        e [1] = "b) about 1 million";
        e [2] = "c) about 1 billion";
        e [3] = "d) about 1 trillion";
        ans = new String [5];
        ans [0] = "c";
        ans [1] = "d";
        ans [2] = "b";
        ans [3] = "d";
        ans [4] = "d";
        System.out.println ("\t\t\tWelcome to the quiz \n");
        System.out.println (ques [0] + "\n\n" + a [0] + "\n" + a [1] + "\n" + a [2] + "\n" + a [3]);
        System.out.print ("\nanswer : ");
        temp = keyboard.readLine ();
        if (temp.equals (ans [0]))
            System.out.println ("\n\nCorrect!!! \n");
            num = num + 1;
        else
            System.out.println ("\n\nWrong!!!\n\n");
        System.out.println (ques [1] + "\n\n" + b [0] + "\n" + b [1] + "\n" + b [2] + "\n" + b [3]);
        System.out.print ("\nanswer : ");
        temp = keyboard.readLine ();
        if (temp.equals (ans [1]))
            System.out.println ("\n\nCorrect!!! \n");
            num = num + 1;
        else
            System.out.println ("\n\nWrong!!!\n\n");
        System.out.println (ques [2] + "\n\n" + c [0] + "\n" + c [1] + "\n" + c [2] + "\n" + c [3]);
        System.out.print ("\nanswer : ");
        temp = keyboard.readLine ();
        if (temp.equals (ans [2]))
            System.out.println ("\n\nCorrect!!! \n");
            num = num + 1;
        else
            System.out.println ("\n\nWrong!!!\n\n");
        System.out.println (ques [3] + "\n\n" + d [0] + "\n" + d [1] + "\n" + d [2] + "\n" + d [3]);
        System.out.print ("\nanswer : ");
        temp = keyboard.readLine ();
        if (temp.equals (ans [3]))
            System.out.println ("\n\nCorrect!!! \n");
            num = num + 1;
        else
            System.out.println ("\n\nWrong!!!\n\n");
        System.out.println (ques [4] + "\n\n" + e [0] + "\n" + e [1] + "\n" + e [2] + "\n" + e [3]);
        System.out.print ("\nanswer : ");
        temp = keyboard.readLine ();
        if (temp.equals (ans [4]))
            System.out.println ("\n\nCorrect!!! \n");
            num = num + 1;
        else
            System.out.println ("\n\nWrong!!!\n\n");
          System.out.println ("--------------------------------------------------");
        System.out.println ("You answered " + num + " out of 5 questions correctly\n\n");
        if (num >= 5)
            System.out.println ("Grade A+ : You are Awesome\n\n ");
        else if ((num >= 4) && (num < 5))
            System.out.println ("Grade A : You did Great\n\n ");
        else if ((num >= 3) && (num < 4))
            System.out.println ("Grade C : You did Okay\n\n ");
        else
            System.out.println ("Grade F : You did Poorly\n\n ");
}is it possible to save all the output to a file, if yes then can you please tell me how
Thanks
Edited by: supahsain08 on Mar 3, 2008 3:09 PM

Answer 1

Class names should start with a capital.
Don't put all your code in the main method. Start to break it down into smaller chunks which can go into methods.
You need to read about File classes and IO. Do a search on the sun website for a tutorial.