Well, this might work for you
public class BankAccount {
public static void main(String[] args) {
BankAccount account = new BankAccount();
account.deposit(1000);
account.deposit(2000);
System.out.println("Balance: " + account.getBalance());
account.deposit(3000);
account.deposit(4000);
System.out.println("Balance: " + account.getBalance());
}
private int currentBalance = 0;
private int getBalance() {
return this.currentBalance;
}
public void deposit(int depositAmount) {
this.currentBalance = this.currentBalance + depositAmount;
}
}