this is what we are learning in java!

package matthewsjavaapp;

import java.io.*;
public class Main {

  
   public static void main(String[] args) throws IOException {
Controller player1 = new Controller();
BufferedReader inputter = new BufferedReader(new InputStreamReader(System.in));
      System.out.print("How long do you want to play?");
      int input =Integer.parseInt(inputter.readLine());
      if(input<= 100)    // put in a loop for trying again             player1.play(input);
else System.out.println("The Battery doest hold that much charge.");                System.out.println("Enter A command");                
System.out.println("1. Charge Battery");                
System.out.println("2. Drain Battery");                            
int command = Integer.parseInt(inputter.readLine());               
if (command == 1 && true)player1.batterypack.charge();                
if (command == 2 && true)player1.batterypack.drain();                System.out.println("Battery charge level is now " + player1.batterypack.charge);               }  } 
this is a battery

package matthewsjavaapp;

public class Battery {
int charge = 100;
boolean IsDead = false;
void chargeby(int a) {
charge = charge + a;
}
void drainby(int b){
charge = charge - b;
}
void charge(){
   if (charge <100){>0){
   charge-=10;
   }
}
void recharge() {charge=100;}
void CheckStatus() {
if (charge <=0) { IsDead = true; } } } 
this is a controller that uses a battery

package matthewsjavaapp;

/**
*
* @author Compaq_Owner
*/
public class Controller {
Battery batterypack = new Battery();
void play(int time){
   batterypack.drainby(time);
   System.out.println("Battery Level is now " + batterypack.charge);
   batterypack.CheckStatus();
   System.out.println("Battery is empty = " + batterypack.IsDead);
  
}
}