double displaying very long number

Question

I have a simple calculation that uses doubles but I\'m getting an unexpected result and I can\'t understand why?

import java.util.Scanner;
public class Versa         


        

Answer 1

You cannot represent decimal values precisely whilst operating on doubles (or floats). Use BigDecimal instead.

Edit (2)

Example here:

BigDecimal amount = new BigDecimal("2.99");
amount = amount.add(new BigDecimal("25.00"));
System.out.println(amount.toString());

Ouput:

27.99