my practice java rpg1

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




public class JavaPractice1 {
     static int BaseEXP;
     static String PlayableCharacterName;





    public static void main(String[] args) {
        //System objects
        Scanner in;
        in = new Scanner(System.in);
         Random rand ;
         rand = new Random();
         int PlayerLevel = 1;
         int GP = 1;



        //Player Variables


        int health = 300;
         int attackDamage = 50;
         int numHealthPotions = 3;
         int healthPotionHealAmount = 50;
         int healthPotionDropChance = 20;

         String[] enemies = {"Elf", "Dwarf", "Halfling", "Man", "Giant", "Goblin", "Orc"};
         int maxEnemyHealth = 250;
         int enemyAttackDamage = 30;
         int expGain = 1;
         int GainGP = rand.nextInt(40);
         expGain = expGain += rand.nextInt(40);

         boolean running = true;

         System.out.println(" Welcome Back Comrades... ");
         System.out.println("\t>> What is your name?");
            PlayableCharacterName = in.nextLine();
         System.out.println(">> Its time to start your journey " + PlayableCharacterName + "...");

         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("\t Your HP " + health);
             System.out.println("\t" + enemy + "'s HP: " + enemyHealth);
             System.out.println("\n\t What would you like to do?");
             System.out.println("\t1. Attack");
             System.out.println("\t2. Drink Potion");
             System.out.println("\t3. Flee");

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

                 enemyHealth -= damageDealt;
                 health -= damageTaken;

                 System.out.println("\t> You hit the " + enemy + " for " + damageDealt + " damage ");
                 System.out.println("\t> You were hit for " + damageTaken + " in response ");

                 if(health < 1) {
                     System.out.println(" You have recieved a killing blow! ");
                     break;
                 }
             }
        else if(input.equals("2")) {
          if(numHealthPotions > 0) {
            health += healthPotionHealAmount;
            numHealthPotions--;
            System.out.println("\t You drink a Health Potion, you are healed for " + healthPotionHealAmount + "."
                             + "\n\t> You now have" + health + " HP "
                             + "\n\t> You have " + numHealthPotions + " Health potions left.\n ");
                 }
                 else {
                     System.out.println("\t> You have no Health Potions left! Defeat some enemies for a chance to get more!");
                 }
             }
             else if(input.equals("3")) {
                 System.out.println("\t> You successfully escaped from " + enemy + " ! ");
                 continue GAME;
            }
             else {
                 System.out.println("\t Invalid Action");
             }

         }
         if (health < 1){
             System.out.println (" You iz Dedded, Well done you Muppet....");
             break;
         }
             System.out.println("--------------------------------------------");
             System.out.println(" # " + enemy + " was defeated!! #");
             System.out.println(" # You have" + health + " HP left. #");
             BaseEXP += expGain;
            System.out.println("# You have gained " + expGain + "EXP" +
                     "\n You now have " + BaseEXP + "EXP!" );

        if (BaseEXP >= 60) {
             PlayerLevel += 1;

        if (BaseEXP >= 90) {
            PlayerLevel += 1;
}
        }
          System.out.println("You have gained a level!");
             System.out.println("You are now Level " + PlayerLevel + "!");

            GP = GP += GainGP;

            System.out.println("You have gained " + GainGP + " GP from " + enemy);
            System.out.println("You now have " + GP + "GP.");


             if (rand.nextInt(100) < healthPotionDropChance) {
                 numHealthPotions++;
                 System.out.println("You found a Health Potion from corpse of " + enemy + "#" );
                 System.out.println("You now have " + numHealthPotions + "Health Potions left. #");

                System.out.println("--------------------------------------------");
             System.out.println("What would you like to do now?");
             System.out.println("1. Continue Battling");
             System.out.println("2. Leave ");
             System.out.println("3. Shop");
             }
             String input = in.nextLine();


             while(!input.equals("1") && (!input.equals("2") && (input.equals("3")))) {
                 System.out.println("Invalid");
                 input = in.nextLine();
             }

             if(input.equals ("1")) {
                 System.out.println("Hi Ho, Hi Ho, Adventuring we goooo!!!!");
             }
            else if(input.equals ("2"))  {
                System.out.println("Live to fight another day...");
                break;
            }




         }

         System.out.println("###############");
         System.out.println("Thank you come again!!");
         System.out.println("###############");
    }