Floating point problem in method

Question

When I got a method, like moveTo(float,float), originally, it should be, for example moveTo(30.45f,100.894f). But if I passed an array which id of type float but don't have the 'f' at the back. Does this matter? An Example:
float x1Points[]=new float[ix.length];
float y1Points[]=new float[iy.length];
     for(int i=0;i<ix.length;i++){
     x1Points=ix[i]*100000-299900;
     y1Points[i]=iy[i]*1000-101710;
GeneralPath polygon = new GeneralPath(GeneralPath.WIND_EVEN_ODD);
polygon.moveTo(x1Points[0], y1Points[0]);//problem here
for ( int i = 1; i < x1Points.length; i++ ) {
polygon.lineTo(x1Points[i], y1Points[i]);
g2d.draw(polygon);

Answer 1

No, this does not matter.
The "f" is only for numeric literal values, to indicate that the value is a float, instead of an int or double (which it is by default).
For variables, there is no need to specify the type with a postfix letter like the "f", because the type of variables is always known; for example, the compiler already knows that you have an array of floats, so there is no need to tell the compiler again that you want to pass floats to the method.
Jesper