Scuffed Battleship Code

// Created 8 April 2020, Victor Shin

import java.util.Random;
import java.util.Scanner;

public class battleship {
    public static void main(String[] args) {
        String[][] ocean = new String[10][10];
        Scanner input = new Scanner(System.in);

//deploy user ships

        for (int deploynumber = 0; deploynumber < 5; deploynumber++) {
            System.out.print("Enter x coordinate for your ship: ");
            int x = input.nextInt();
            if (x > 9) {
                System.out.println("Please restart and type a number inside the coordinate plane.");
                System.exit(0);
            }
            System.out.print("Enter y coordinate for your ship: ");
            int y = input.nextInt();
            if (y > 9) {
                System.out.println("Please restart and type a number inside the coordinate plane.");
                System.exit(0);
            }
            char t = 'O';
            String userTarget = Character.toString(t);
            ocean[x][y] = userTarget;
        }


//map~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

        public static void printMap(){

            System.out.println("  0123456789  ");
            for (int row = 0; row < ocean.length; row++) {
                System.out.print(row + "|");
                for (int column = 0; column < ocean[row].length; column++) {
                    if (ocean[row][column] == null) {
                        System.out.print(" ");
                    } else {
                        System.out.print(ocean[row][column]);
                    }
                }
                System.out.println("|" + row);
            }

            System.out.println("  0123456789  ");

        }


//map~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


        // AI deploy 5 ships random
        Random rand = new Random();
        String[][] aiShips = new String[10][10];


        for(int AIdeploy = 0; AIdeploy<5; AIdeploy++) {
            int AIx = rand.nextInt(9);
            int AIy = rand.nextInt(9);
            aiShips[AIx][AIy] = "aiShip";
        }


//        while(ship # == 0)
        System.out.print("Type in the x coordinate you wish to attack: ");
        int x = input.nextInt();
        System.out.print("Type in the y coordinate you wish to attack: ");
        int y = input.nextInt();
        if (aiShips[x][y] == "aiShip") {
            System.out.print("You sunk a ship!");
            char h = '#';
            String j = Character.toString(h);
            ocean[x][y] = j;

            //map needs to go here

        } else if(aiShips[x][y] == null){
            System.out.print("You missed!");
            ocean[x][y] = "N";
            //map needs to go here
        }

    }

}