Boss battle

algorithm

//Player Algorithm:
//For player class, the player (Ichigo) starts with 500 HP and 100 SP
//For each turn, the player is presented with an option of skills to use against the boss on the console
//The player can do four different skills:
// 1. Broadsword Slash
// 2. Broadsword Cleaver
// 3. Focus
// 4. Getsuga Tensho!
//Broadsword Slash is the basic attack that does 100 damage to the boss without taking any SP
//Broadsword Cleaver is a stronger version of Broadsword Cleaver that does 500 damage to the boss at the cost of 5 SP
//Focus allows the player to heal 75 HP at the cost of 15 SP, but the boss has a 50% chance of attacking you not allowing you to heal
//Getsuga Tensho! is an attack that does 1000 damage to the boss at the cost of 30 SP
//The Player wins when the boss' heath reaches zero
//The Player gets a GAME OVER when their health reaches Zero

//Boss Algorithm:
//For boss class, the boss starts with 10000 HP
//The boss can do three different attacks, and these attacks are done at random chance by the boss' choice:
// 1. lightattack
// 2. heavyattack
// 3. CHARGE!
//lightattack does 20 damage to the player
//heavyattack does 50 damage to the player
//Charge! does 150 damage to the player, but requires a wind up for the boss to do with a countdown on the console
//When the boss is defeated, it makes the "ARGGHH" sound

Boss.java

import java.util.*;
public class Boss extends Character{

   public String name;
   public String attack;
   public String noise;
   public int health;

   public Boss(String name, /*String attack,*/ String noise, int health) {
    this.name = "Heckran";
    this.noise = "ARGGHH";
/*     ArrayList<Object> assault = new ArrayList <Object>();
   this.assault = "lightattack";
   this.assault = "heavyattack";
   this.assault = "Charge!";*/
    this.health = 10000;
   }

@Override
abstract void attack(Character defendingCharacter);/*{
public static void sleep(int time) {
  try {
    Thread.sleep(time);
  } catch (Exception e) {}
}
    /*
       for (Integer max1 : intList, player.health > 0) {
       Random random = new Random();
    int num = random.nextInt(yourListLength);
       if (nextInt == 0 ) {
       System.out.println(this.name + " attacks " + defendingCharacter.name + " and deals 20 damage!");
     defendingCharacter.health -= 20;
       }if (nextInt == 1 ) {
       System.out.println(this.name + " attacks " + defendingCharacter.name + " and deals 50 damage!");
     defendingCharacter.health -= 50;
      }if (nextInt == 2 ) {
       System.out.println(boss.name + " is winding up for an attack");
      sleep(5000);
      System.out.println("5");
      sleep(5000);
      System.out.println("4");
      sleep(5000);
      System.out.println("3");
      sleep(5000);
      System.out.println("2");
      sleep(5000);
      System.out.println("1");
      sleep(5000);
      System.out.println(this.name + " charges at " + defendingCharacter.name + " and deals 150 damage!");
     defendingCharacter.health -= 150;
        }
      }
    }*/
   
}

Character.java

abstract class Character {

  abstract void attack(Character defendingCharacter);
  
}

current errors

 javac -classpath .:/run_dir/junit-4.12.jar:target/dependency/* -d . Boss.java Character.java Main.java Player.java
Boss.java:2: error: Boss is not abstract and does not override abstract method attack(Character) in Character
public class Boss extends Character{
       ^
Player.java:27: error: cannot find symbol
    case "Broadsword Slash": System.out.println(this.name + " attacks the " + defendingCharacter.name + " and deals 100 damage!");
                                                                                                ^
  symbol:   variable name
  location: variable defendingCharacter of type Character
Player.java:28: error: cannot find symbol
     defendingCharacter.health -= 100;
                       ^
  symbol:   variable health
  location: variable defendingCharacter of type Character
Player.java:29: error: cannot find symbol
    case "Broadsword Cleaver": System.out.println(this.name + " attacks the " + defendingCharacter.name + " and deals 500 damage!");
                                                                                                  ^
  symbol:   variable name
  location: variable defendingCharacter of type Character
Player.java:30: error: cannot find symbol
     defendingCharacter.health -= 500;
                       ^
  symbol:   variable health
  location: variable defendingCharacter of type Character
Player.java:42: error: cannot find symbol
    case "Getsuga Tensho!": System.out.println(this.name + " attacks the " + defendingCharacter.name + " with a Getsuga Tensho and deals 100 damage!");
                                                                                               ^
  symbol:   variable name
  location: variable defendingCharacter of type Character
Player.java:43: error: cannot find symbol
     defendingCharacter.health -= 1000;
                       ^
  symbol:   variable health
  location: variable defendingCharacter of type Character
Player.java:47: error: cannot find symbol
     } if (defendingCharacter.health <= 0) {
                             ^
  symbol:   variable health
  location: variable defendingCharacter of type Character
Player.java:48: error: cannot find symbol
       System.out.println("The " + defendingCharacter.name + " lets out its death scream, \"" + defendingCharacter.noise + "!\" and then dies.  YOU WIN");
                                                     ^
  symbol:   variable name
  location: variable defendingCharacter of type Character
Player.java:48: error: cannot find symbol
       System.out.println("The " + defendingCharacter.name + " lets out its death scream, \"" + defendingCharacter.noise + "!\" and then dies.  YOU WIN");
                                                                                                                  ^
  symbol:   variable noise
  location: variable defendingCharacter of type Character
Player.java:50: error: cannot find symbol
       System.out.println("The " + defendingCharacter.name + " is hurt and enraged!");
                                                     ^
  symbol:   variable name
  location: variable defendingCharacter of type Character
11 errors
exit status 1

Main.java

 import java.util.Scanner;
 import java.util.*;
 class Main {
   public static void main(String[] args) {

     Player player = new Player();
     System.out.println(player.name);
     System.out.println(player.skill);
     System.out.println(player.health);
     System.out.println(player.SP);

   Scanner choice = new Scanner(System.in);

   System.out.println("1. Broadsword Slash\n"
                    + "2. Broadsword Cleaver\n"
                    + "3. Focus\n"
                    + "4. Getsuga Tensho!");

   int skill = choice.nextInt();

     Boss boss = new Boss("Heckran", /*20, 50, 150,*/ "ARGGHH", 10000);
    }

   }

Player.java

 import java.util.Scanner;
import java.util.*;
public class Player extends Character{
  
   public String name;
   public String skill;
   public int health;
   public int SP;

   public Player() {
     this.name = "Ichigo";
    ArrayList<Object> skill = new ArrayList <Object>();
     this.skill = "Broadsword Slash";
     this.skill = "Broadsword Cleaver";
     this.skill = "Focus";
     this.skill = "Getsuga Tensho!";
     
     this.health = 500;
     this.SP = 150;
   }
//   Scanner choice = new Scanner(System.in);

//int skill = choice.nextInt();
@Override
  public void attack(Character defendingCharacter) {
       switch(skill) {
    case "Broadsword Slash": System.out.println(this.name + " attacks the " + defendingCharacter.name + " and deals 100 damage!");
     defendingCharacter.health -= 100;
    case "Broadsword Cleaver": System.out.println(this.name + " attacks the " + defendingCharacter.name + " and deals 500 damage!");
     defendingCharacter.health -= 500;
     this.SP -= 5;
    case "Focus": /*Random random = new Random();
    int num = random.nextInt(2-0);
    if(num == 0){*/
     System.out.println(this.name + " used focus and healed 75 damage!");
     this.health += 75;
     this.SP -= 15;
    /*}if(num == 1) {
    System.out.println(defendingCharacter.name + " attacks " + this.name + " and deals 20 damage!");
     this.health -= 20;
    }*/
    case "Getsuga Tensho!": System.out.println(this.name + " attacks the " + defendingCharacter.name + " with a Getsuga Tensho and deals 100 damage!");
     defendingCharacter.health -= 1000;
     this.SP -= 40;
    } if (this.health <= 0) {
       System.out.println("GAME OVER!");
     } if (defendingCharacter.health <= 0) {
       System.out.println("The " + defendingCharacter.name + " lets out its death scream, \"" + defendingCharacter.noise + "!\" and then dies.  YOU WIN");
     } else {
       System.out.println("The " + defendingCharacter.name + " is hurt and enraged!");

     }
   }
  
 }