word by word

public class Main {
	public static void main(String[] args) {
		Scanner sc1 = new Scanner(System.in);
		System.out.println("Enter first string: ");
		String str1 = sc1.nextLine();
		System.out.println("Enter second string of same length: ");
		String str2 = sc1.nextLine();
		System.out.println(str1);
		String clear = "";
		for (int i = 0; i < str1.length(); i++) {
			clear = clear + str2.charAt(i);
			if (str2.charAt(i) != (str1.charAt(i))) {
				System.out.println(clear + str1.substring(i + 1));
			}
		}

	}

}