A while loop with an if statement and a for loop in it [duplicate]

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I am trying to create a small program where I can have the program read in a word. If the word has 6 letters, display the word backwards. If not, tell the user how many letters the word has. Do this until the user enters “japan”.

The example output is:

Enter a word > chess

chess has 5 letters

Enter a word > google

Magic six! ELGOOG

Enter a word > japan

Goodbye!

The if statement and the for loop are bypassed for some reason and I'm not sure why. My current code is as such:

import java.util.*; //imports the utilities
public class WordPyramid {
    public static void main(String[] args) {
        String n;
        Scanner kb = new Scanner(System.in);
        System.out.println("Enter a word: "); 

        while ((n = kb.nextLine().toLowerCase()) == "japan" ) {
            int y = n.length();
            {
                if (y == 6) {
                    String reverse = "";

                    for (int i = y - 1; i >= 0; i--) {
                        reverse = reverse + n.charAt(i);
                        System.out.println(reverse);
                    }
                }
                else {
                    System.out.println(n+" has "+ y+1 +" letters ");
                }
            }
        }
    }
}