Question

I need to write a program that gets three numbers from the user, then passes those to an overloaded method (I have a double and int).

My question is how do I determine if it’s an int or a double?

To get input I’m doing this:

Scanner input = new Scanner( System.in );
double number1 = input.nextDouble(); // read first double
double number2 = input.nextDouble(); // read second double
double number3 = input.nextDouble(); // read third double

MyMathOps MyMathOps = new  MyMathOps();
double result = MyMathOps.maximum( number1, number2, number3 ); 
System.out.println(result);

But what if they enter an int? I want to be able to determine this, and pass it to the int maximum method.

Answer 1

Just treat all input as double, since you’re supporting floating point inputs. It doesn’t make sense to use int only sometimes just because the input happens to be an integer.