What is the best way to separate double into two parts “integer & fraction” in java

Question

I have tried to separate 5.6 (for example) by the following method:

private static double[] method(double d)
{
    int integerPart = 0;
    double fractionPart =         


        

Answer 1

String doubleAsString = Double.toString(123.456);

String beforeDecimal=doubleAsString.substring(0,doubleAsString.indexOf(".")); //123

String afterDecimal=doubleAsString.substring(doubleAsString.indexOf(".")+1); //456