package EConcurrency.Lock;

import java.util.concurrent.locks.Lock;

import java.util.concurrent.locks.ReentrantLock;

public class Account {

private Lock lock = new ReentrantLock();

private volatile double money;

public Account(double initialMoney) {

this.money = initialMoney;

}

public void add(double money) {

lock.lock();

try {

this.money += money;

} finally {

lock.unlock();

}

}

public void reduce(double money) {

lock.lock();

try {

this.money -= money;

} finally {

lock.unlock();

}

}

public double getMoney() {

return money;

}

void lock() {

lock.lock();

}

void unlock() {

lock.unlock();

}

boolean tryLock() {

return lock.tryLock();

}

}