提示时for循环不起作用

Question

我的Java HW将使用一些股票市场数据，读/写文件。我正在尝试将此选项（下方）放入代码中，出于某种原因，当我输入Y时，它不会进入for-loop。我无法弄清楚为什么。当我输入Y时，它直接进入下一个代码块并开始将数据打印到屏幕上（正如它应该做的那样），没有任何以下输出/输入。

System.out.println("Would you like to add items to the StockMarket data? (Y or N)");
Scanner input_check = new Scanner(System.in);
if(input_check.next() =="Y"){
    //Scanner inp = new Scanner(System.in);
    System.out.println("Enter name of stock (all caps): ");
    //String input = inp.next();
    names.add(input_check.next());
    System.out.println("Enter date (MM/DD/YEAR) of stock data: ");
    dates.add(input_check.next());
    System.out.println("Enter the opening price: ");
    opening.add(input_check.next());
    System.out.println("Enter the closing price: ");
    closing.add(input_check.next());
    System.out.println("Enter the highest price: ");
    highest.add(input_check.next());
    System.out.println("Enter the lowest price: ");
    lowest.add(input_check.next());
}