compiler

/**
 * @(#)Compiler.java
 *
 *
 * @author
 * @version 1.00 2012/5/19
 */
import java.util.*;
import java.util.Random;
import java.util.Scanner;
import java.*;
import java.io.*;
import java.lang.*;

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

		BufferedWriter outStream= new BufferedWriter(new FileWriter("encoded.txt"));
		Scanner input = new Scanner(System.in);
    	Scanner confirmation = new Scanner(System.in);
		Random randomGenerator = new Random();
		double rand = (Math.random()*4);
		int randInt =(int)(rand/1);
		randInt = randInt + 1;
		input.useDelimiter (";");
		int cont = 0;
		String in = "     ";
		String fileInput = "  ";
		while(cont==0)
		{
			System.out.println("Would you like to read from a file or text input in this window? Answer with \"1\" or \"2\" for the respective method");
			int confirm = confirmation.nextInt();
			System.out.println();
			if(confirm == 1)
			{
				cont = 1;
				System.out.println("you have chosen \"file\". Pulling data from the file \"to_encode.txt\"");
				File srcFile = new File("to_encode.txt");
				BufferedReader intwo = new BufferedReader(new FileReader(srcFile));
				fileInput = intwo.readLine();

				intwo.close();

			}
			if(confirm == 2)
			{
				System.out.print("Enter code to be encoded. End the text with a semicolon(;): ");
				in = input.next();
				System.out.println();
				cont = 2;
			}
			if(cont != 1 && cont !=2)
			{
				System.out.println("That is not a valid choice, please try again");
				cont = 0;
			}

		}
		if(cont == 1)
		{
			in = fileInput;
		}
		Random r = new Random();
		int x = in.length();
		final int lgh = in.length();
		String next;
		String left;
		left = in;
		char c;
		String ca;
		String temp;
		String stringCode = " ";
		for(int z = 0; z<lgh;z=z+1) // repeat once for every character in the input string remaining
		{
			for(int y=0;y<randInt;y++) //repeat twice
			{
				c = (char)(r.nextInt(26) + 'a'); //generate a random character (lowercase)
				ca = Character.toString(c);
				stringCode = stringCode + ca; //add a random character to the encoded string
			}


			x = left.length();
			next = left.substring(0,1);
			stringCode = stringCode + next;
			left = left.substring(1,x);
}

		stringCode = stringCode.substring(randInt+1,stringCode.length());

		String output = "";
		if(randInt==1)
{
output = "a"+stringCode;
}
		if(randInt==2)
{
output = "b"+stringCode;
}
		if(randInt==3)
{
output = "c"+stringCode;
}
		if(randInt==4)
{
output = "d"+stringCode;
}
		if(randInt==5)
{
output = "e"+stringCode;
}
else
{

}



		System.out.println(output);
		System.out.println("is writing to \"encoded.txt\"");
		outStream.newLine();
		outStream.write(output);
		outStream.close();
		System.out.print("Writing has finished. ");
	}

}