how to read an integer of DOUBLE datatype with type casting

[amrmb09]

please, tell me how to read an integer of DOUBLE data type using
1-readInt() with tpe casting.
2-any other approach

ublic static void main(String [] args)
{
	Scanner read = new Scanner(System.in);
	double radius;
   Circle []c1 =new Circle[5];
   
    for (int i=0;i<c1.length;i++)
    {
  	  System.out.println("radius("+(i+1)+")= ");
  	  radius=read.nextInt();
  	  c1[i] = double new Circle2(radius);
  	  System.out.print("obj("+(i+1)+").Area= "+c1[i].area());
  	  System.out.print("obj("+(i+1)+").Area= "+c1[i].circum());
  	  System.out.print("obj("+(i+1)+").Area= "+c1[i].diam());
    }

[javaman1]

You can just use "nextDouble()" instead of "nextInt()".

[JosAH]

please, tell me how to read an integer of DOUBLE data type using
1-readInt() with tpe casting.
2-any other approach

A (primitive) data type is either int or double; it can't be an int of double type or vice versa; casting is easy though:

double d= ...;
int i= (int)d;

It doesn't matter how d got its value, you don't even need an explicit d variable:

int i= scanner.nextDouble();

In this code fragment a scanner reads a double value which is cast to an int and assigned to an int variable i. Casting the other way around (ints to doubles) is even easier, i.e. you don't need the explicit cast operation.

kind regards,

Jos