Wrong array input

So I wanted to take the user input into a variable and then add it to the array but instead the character goes straight into the array and skips like 3 lines of code. The Code here

import java.util.*;
public class Hangman{

public static void main(String[] args){
    Scanner sc = new Scanner(System.in);
    System.out.println("Please enter your word and press enter: ");
    String word = sc.nextLine();
    System.out.println("Please enter a relevant category and press enter: ");
    String category = sc.nextLine();
    word.toUpperCase();
    char charArray[] = new char[word.length()];


    for(int i = 0; i<=word.length(); i++){
        System.out.println("Category: " + category);
        System.out.println("Letters Guessed: " + Arrays.toString(charArray));
        System.out.println("Your guess: ");
        char guess = sc.nextLine().charAt(0);
        compare(guess, word);
        charArray[i] = guess;


    }
}
public static boolean compare(char guess, String word){
    for(int i = 0; i<word.length(); i++){
        if(guess == word.charAt(i)){
            return true;
        }
    }
    return true;
}
}

Output :

Please enter your word and press enter: 
hello
Please enter a relevant category and press enter: 
test
Category: test
Letters Guessed: [hi
Category: test
Letters Guessed: [h, l
Category: test
Letters Guessed: [h, l, m
Category: test
Letters Guessed: [h, l, m, o
Category: test
Letters Guessed: [h, l, m, o, n
Category: test
Letters Guessed: [h, l, m, o, n]
Your guess: 

can someone give some tips