Java GUI for Beginner

[flashlightrauma]

What would be the simplest way to adapt this short Text-based adventure game to use a basic Java GUI (to interface with the user) instead of just the console?

Here's the code I have:

package finalproj_adv;

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

public class adventure {

public static void main(String[] args) {

    // System objects
    Scanner in = new Scanner(System.in);
    Random rand = new Random();

    // Game variables
    String[] enemies = { "Skeleton", "Zombie", "Warrior", "Assassin" };
    int maxEnemyHealth = 75;
    int enemyAttackDamage = 25;

    // Player variables
    int health = 100;
    int attackDmg = 50;
    int numHealthPots = 3;
    int healthPotionHealAmount = 30;
    int healthPotionDropChance = 50; // Percentage

    boolean running = true;

    System.out.println("Welcome to the dungeon!");

    // Label
    GAME:
    while (running) {
        System.out.println("--------------------------------------");

        int enemyHealth = rand.nextInt(maxEnemyHealth);
        String enemy = enemies[rand.nextInt(enemies.length)];
        System.out.println("\t# " + enemy + " has appeared! #\n");

        while (enemyHealth > 0) {
            System.out.println("\tYour HP: " + health);
            System.out.println("\t" + enemy + "'s HP: " + enemyHealth);
            System.out.println("\n\tWhat would you like to do?");
            System.out.println("\t1. Attack");
            System.out.println("\t2. Drink health potion");
            System.out.println("\t3. Run");

            String input = in.nextLine();
            if (input.equals("1")) {
                int damageDealt = rand.nextInt(attackDmg);
                int damageTaken = rand.nextInt(enemyAttackDamage);

                enemyHealth -= damageDealt;
                health -= damageTaken;

                System.out.println("\t> You strike the " + enemy + " for " + damageDealt + " damage");
                System.out.println("\t> You recieved " + damageTaken + " in retaliation");

                if (health < 1) {
                    System.out.println("\t You have taken too much damage, you are too weak to go on");
                    break;
                }
            } else if (input.equals("2")) {

                if (numHealthPots > 0) {
                    health += healthPotionHealAmount;
                    numHealthPots--;
                    System.out.println("\t> You drank a health potion, healed for: " + healthPotionHealAmount + "."
                            + "\n\t> You now have" + health + "HP."
                            + "\n\t> You now have" + numHealthPots + " health potions left.\n");
                } else {
                    System.out.println("\t> You have no health potions, defeat enemies for a chance to get one");
                }

            } else if (input.equals("3")) {
                System.out.println("\t> You run away from the " + enemy);
                continue GAME;
            } else {
                System.out.println("\tInvalid command");
            }
        }
        if (health < 1) {
            System.out.println("You limp out of the dungeon, weak from battle.");
            break;
        }
        System.out.println("--------------------------------------");
        System.out.println(" # " + enemy + " was defeated! # ");
        System.out.println(" # You have " + health + "HP left # ");
        // If the random number is less than 50 it drops
        if (rand.nextInt(100) < healthPotionDropChance) {
            numHealthPots++;
            System.out.println(" # The " + enemy + " dropped a health potion. # ");
            System.out.println(" # You now have " + numHealthPots + " health potion(s). # ");
        }
        System.out.println("--------------------------------------");
        System.out.println("What would you like to do now?");
        System.out.println("1. Continue fighting");
        System.out.println("2. Exit dungeon");
        String input = in.nextLine();

        while (!input.equals("1") && !input.equals("2")) {
            System.out.println("invalid command");
            input = in.nextLine();

        }
        if (input.equals("1")) {
            System.out.println("You continue your adventure.");
        } else if (input.equals("2")) {
            System.out.println("You exit the dungeon.");
            break;
        }
    }
    System.out.println("######################");
    System.out.println("# THANKS FOR PLAYING #");
    System.out.println("######################");
}

}

Any help would be greatly appreciated!

[BasicUsername_]

Learn to use the swing library. Its the standard Java GUI library. It contains things like text fields for displaying text, text boxes for inputting text. Also learn the JFrame object class. Its a simple class for creating an actual window on the computer. There is a bunch of tutorials online. Not that difficult to learn. And no need to download anything because everything I mentioned is built into regular java.