src/com/mavlon/finances/Wallet.java


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package com.mavlon.finances;

import java.io.Serializable;

public class Wallet implements Serializable {
    private double money;

    public Wallet() {
    }

    public Wallet(double money) {
        this.money = money;
    }

    public void put(double money) {
        this.money += money;
    }

    public void take(double money) {
        if (this.money < money) {
            throw new IllegalArgumentException("You do not have such money.");
        }
        this.money -= money;
    }

    public double getMoney() {
        return money;
    }

    public void setMoney(double money) {
        this.money = money;
    }

    @Override
    public String toString() {
        return "Wallet" +
                "\nmoney = " + money +
                '\n';
    }
}