public static ExchangeRateHolder GetInstance()
{
if (INSTANCE == null)
{
INSTANCE = new ExchangeRateHolder();
}
return INSTANCE;
}
public static ExchangeRateHolder GetInstanceThreadSafe()
{
if (INSTANCE == null)
{
lock (MONITOR)
{
if (INSTANCE == null)
{
INSTANCE = new ExchangeRateHolder();
}
}
}
return INSTANCE;
}
