int holdings = TradeConfig.rndInt(TradeConfig.getMAX_HOLDINGS() + 1);
double quantity = 0;
for (int j = 0; j < holdings; j++) {
symbol = TradeConfig.rndSymbol();
quantity = TradeConfig.rndQuantity();
tradeServices.buy(userID, symbol, quantity,
TradeConfig.orderProcessingMode);
}
if (i % 50 == 0) {
out.println(" has " + holdings + " holdings.");
out.flush();