SpellCheck

import java.util.Scanner;
import java.io.File;
import java.util.ArrayList;

public class SpellCheck
{
	private ArrayList<String> dict = new ArrayList<>();
	private ArrayList<String> sentence = new ArrayList<>();
	private String input;

	private char[] A = new char[] {'k','l','s','d'};
	private char[] B = new char[] {'c','v','n','m'};
	private char[] C = new char[] {'z','x','v','b'};
	private char[] D = new char[] {'a','s','f','g'};
	private char[] E = new char[] {'q','w','r','t'};
	private char[] F = new char[] {'s','d','g','h'};
	private char[] G = new char[] {'d','f','h','j'};
	private char[] H = new char[] {'f','g','j','k'};
	private char[] I = new char[] {'y','u','o','p'};
	private char[] J = new char[] {'g','h','k','l'};
	private char[] K = new char[] {'h','j','l','a'};
	private char[] L = new char[] {'j','k','a','s'};
	private char[] M = new char[] {'b','n','z','x'};
	private char[] N = new char[] {'v','b','m','z'};
	private char[] O = new char[] {'u','i','p','q'};
	private char[] P = new char[] {'i','o','q','w'};
	private char[] Q = new char[] {'o','p','w','e'};
	private char[] R = new char[] {'w','e','t','y'};
	private char[] S = new char[] {'l','a','d','f'};
	private char[] T = new char[] {'e','r','y','u'};
	private char[] U = new char[] {'t','y','i','o'};
	private char[] V = new char[] {'x','c','b','n'};
	private char[] W = new char[] {'p','q','e','r'};
	private char[] X = new char[] {'m','z','c','v'};
	private char[] Y = new char[] {'r','t','u','i'};
	private char[] Z = new char[] {'n','m','x','c'};

	public SpellCheck()
	{
		readDictionary();
		askInput();
		checkWords();
		printSentence();
	}

	private void printSentence()
	{
		for (String word : sentence)
			System.out.print(word + " ");
		System.out.println();
	}
	private void askInput()
	{
		Scanner in = new Scanner(System.in);
		input = in.nextLine();
		input = input.toLowerCase();

		for (String word : input.split(" "))
		{
			sentence.add(word);
		}
	}

	private void checkWords()
	{
		for (String word : sentence)
		{
			if (!dict.contains(word))
			{
				fixWord(word);
			}
		}
	}

	private void fixWord(String word)
	{
		for (int sp = 0; sp < 4; ++sp)
		{
			String newWord = new String();
			for (int spot = 0; spot < word.length(); ++spot)
			{
				if (word.charAt(spot) == 'a')
				{
					newWord += A[sp];
				}
				else if (word.charAt(spot) == 'b')
				{
					newWord += B[sp];
				}
				else if (word.charAt(spot) == 'c')
				{
					newWord += C[sp];
				}
				else if (word.charAt(spot) == 'd')
				{
					newWord += D[sp];
				}
				else if (word.charAt(spot) == 'e')
				{
					newWord += E[sp];
				}
				else if (word.charAt(spot) == 'f')
				{
					newWord += F[sp];
				}
				else if (word.charAt(spot) == 'g')
				{
					newWord += G[sp];
				}
				else if (word.charAt(spot) == 'h')
				{
					newWord += H[sp];
				}
				else if (word.charAt(spot) == 'i')
				{
					newWord += I[sp];
				}
				else if (word.charAt(spot) == 'j')
				{
					newWord += J[sp];
				}
				else if (word.charAt(spot) == 'k')
				{
					newWord += K[sp];
				}
				else if (word.charAt(spot) == 'l')
				{
					newWord += L[sp];
				}
				else if (word.charAt(spot) == 'm')
				{
					newWord += M[sp];
				}
				else if (word.charAt(spot) == 'n')
				{
					newWord += N[sp];
				}
				else if (word.charAt(spot) == 'o')
				{
					newWord += O[sp];
				}
				else if (word.charAt(spot) == 'p')
				{
					newWord += P[sp];
				}
				else if (word.charAt(spot) == 'q')
				{
					newWord += Q[sp];
				}
				else if (word.charAt(spot) == 'r')
				{
					newWord += R[sp];
				}
				else if (word.charAt(spot) == 's')
				{
					newWord += S[sp];
				}
				else if (word.charAt(spot) == 't')
				{
					newWord += T[sp];
				}
				else if (word.charAt(spot) == 'u')
				{
					newWord += U[sp];
				}
				else if (word.charAt(spot) == 'v')
				{
					newWord += V[sp];
				}
				else if (word.charAt(spot) == 'w')
				{
					newWord += W[sp];
				}
				else if (word.charAt(spot) == 'x')
				{
					newWord += X[sp];
				}
				else if (word.charAt(spot) == 'y')
				{
					newWord += Y[sp];
				}
				else if (word.charAt(spot) == 'z')
				{
					newWord += Z[sp];
				}
			}
			if (dict.contains(newWord))
			{
				for (int spot = 0; spot < sentence.size(); ++spot)
				{
					if (sentence.get(spot).equals(word))
					{
						sentence.set(spot, newWord);
					}
				}
				break;
			}
		}
	}

	private void readDictionary()
	{
		Scanner reader;
		try
		{
			reader = new Scanner(new File("enable1.txt"));
			while (reader.hasNext())
			{
				dict.add(reader.next());
			}
		}
		catch (Exception e){};
	}

	public static void main(String[] args)
	{
		new SpellCheck();
	}
}