How To Round Up To 2 Decimal Places In Java?

I’m working on math.round() to round off this following code:

class round{
    public static void main(String args[]){
    double a = 123.13698;
    double roundOff = Math.round(a*100)/100;
    System.out.println(roundOff);
}
}

It returns 123, but I want it to be 123.14. It is required to be double for both input and output. Can anyone suggest an easy option?