Comparing Inputted Guess To Computer Random Sequence - Counter Not Working?

I have separated characters into an array that can be accessed from any method, however, when I try to compare the inputed guess to the computers random sequence, the counter always comes back as 0 (the comparison occurs in the checkColour method).

Java Code:

package mastermind;
import java.util.Scanner;
/**
* Program Description: play a game of mastermind versus the computer
*/
public class Mastermind {
private static int block1, block2, block3;
private static String blockColour1, blockColour2, blockColour3;

[Code] ....

The counter is called colourCorrect.. But I think the problem lies more in me converting the strings (input and computerGuess) into char arrays, as if I output the values at position in the array, I get numbers (but the numbers are not character values from the ascii table).