Account.java

public class Account {
    public static final int MIN_BALANCE = 0;
    public static final int MAX_BALANCE = 1000000;
    private int balance;

    public int getBalance() {
        return balance;
    }

    public void setBalance(int balance) {
        if(balance<Account.MIN_BALANCE || balance>Account.MAX_BALANCE) {
            return;
        }
        this.balance = balance;
    }
}
class AccountExample {
    public static void main(String[] args) {
        Account account = new Account();

        account.setBalance(10000);
        System.out.println("현재 잔고: " + account.getBalance());

        account.setBalance(-100);
        System.out.println("현재 잔고: " + account.getBalance());

        account.setBalance(2000000);
        System.out.println("현재 잔고: " + account.getBalance());

        account.setBalance(300000);
        System.out.println("현재 잔고: " + account.getBalance());

    }
}