Fight Class first test

/**
 * This code controls fights, and boss fights
 * @author zachary
 *
 **/
import java.util.*;
import java.awt.*;
public class Fighting {
    public Fighting(){
        Fight();
    }
    public void Fight(){
        Scanner attack = new Scanner(System.in);
        Random rand = new Random();
        Game_Variables varObj = new Game_Variables();
        int max=10;
        int min=1;
        int bossChance = 8;//rand.nextInt(max - min + 1) + min;
        int bossHp=200;//boss health
        int bossGold=rand.nextInt(100-50+1)+50;//boss money drop
        int bossExp=75;

        if(bossChance >= 7){
            //a boss mob has appeared
            System.out.println("A boss appears! Prepare to fight!");
            while(bossHp >= 0){
                //boss is alive
                System.out.printf("Boss HP: %d!\n", bossHp);
                System.out.println("Choose attack!\n1. Fireball (50%)\n2. Melee");
                System.out.print("Attack: ");
                attack.nextLine();
                if(attack.equals("1")){
                    int critChance = rand.nextInt(10-1)+1;
                    if(critChance >= 9){
                        //player gets a critical damage is doubled
                        int damage = rand.nextInt(75-31)+30;
                        //deal damage to the boss
                        bossHp=bossHp - damage - 10; //10 extra for critical
                        System.out.printf("You hit the boss for %d!\n", damage-10);
                    }else{
                        int damage = rand.nextInt(75-31)+30;
                        //deal damage to the boss
                        bossHp=bossHp - damage;
                        System.out.printf("You hit the boss for %d!\n", damage);
                    }
                }else{
                    int critChance = rand.nextInt(10-1)+1;
                    if(critChance >= 7){
                        //player gets a critical damage is doubled
                        int damage = rand.nextInt(45-21)+20;
                        //deal damage to the boss
                        bossHp=bossHp - damage - 10; //10 extra for critical
                        System.out.printf("You hit the boss for %d!\n", damage-10);
                    }else{
                        int damage = rand.nextInt(75-31)+30;
                        //deal damage to the boss
                        bossHp=bossHp - damage;
                        System.out.printf("You hit the boss for %d!\n", damage);
                    }
                }

            }
                //boss is dead
                System.out.println("You slayed the boss! Congrats!");
            }else{
            //a normal mob has appeared
            }
    }
}