Question

I need a simple method (JAVA) for rounding Euro cent in this mode:

• 1.00=1.00
• 1.01=1.00
• 1.02=1.00
• 1.03=1.05
• 1.04=1.05
• 1.05=1.05
• 1.06=1.05
• 1.07=1.05
• 1.08=1.10
• 1.09=1.10
• 1.10=1.10

Can anyone help me ? Thanks.

Answer 1

double euro = 1.07;
final double dif = euro % 0.05;
if (dif > 0.025) {
    euro += 0.05 - dif;
} else {
    euro -= dif;
}