Retain precision with double in Java

Question

public class doublePrecision {
    public static void main(String[] args) {

        double total = 0;
        total += 5.6;
        total += 5.8;
        System.out         


        

Answer 1

Use java.math.BigDecimal

Doubles are binary fractions internally, so they sometimes cannot represent decimal fractions to the exact decimal.