Good, I have this method done in Java and the result that returns is a number with many decimals, I would like some way for me to return two decimals only.
Code:
public static float calcularMedia(int[] notas)
{
float resultado = 0;
for(int nota: notas)
{
resultado+=nota;
}
return resultado/notas.length;
}
You can use this function that always returns all the numbers that have decimals with the format you pass, but omits decimals for the numbers that do not have:
DecimalFormat df = new DecimalFormat("#.##");
df.setRoundingMode(RoundingMode.CEILING);
for (int nota : notas) {
Double d = nota.doubleValue();
System.out.println(df.format(d));
}
If it's about printing in the console, you can use System.out.printf or String.format . Example
Using System.out.printf :
float f = 12.34567f;
System.out.printf("El número redondeado: %.2f\n", f);
Using String.format :
float f = 12.34567f;
System.out.println(
String.format("El número redondeado: %.2f", f)
);