Selecting a digit from a double?

[Energize]

Is there a simple way I can select a digit from a double and convert it to int?

I created this statement

Integer.parseInt((Double.toString(priceperlitre)).substring(0, 1))

which works fine, except that when the double is a different length than expected it can select the decimal point and an exception occurs when converting it to an int.

 

[Energize]

The problem is I have 3 seven segment displays, they have 3, 4 and 5 digits respectivley. So I will have to write 12 different assignment statements, and if I have to write if statements as well there will be well over 100 lines! I'm trying to think how to shrink the code down as much as possible.

 

[Energize]

Can you give an example of the input / output you want?

Do you just want the integer part of a double? i.e.

27.33 -> 27

Or do you want a specific digit, like the one always before the decimal place?

27.33 -> 7

A specific digit, each display will display one digit of the boolean.

What are you programming in?

Stelly

Java.

This is my code