The code below will not compile for three reasons. List two of the three reasons that the code will not compile. Be as specific as possible.

public class DoesNotCompile { public static void main ( String args[] ) { int x;

int y = 6 + x;

int a = addParam ( x,y ); System.out.printf ("a is %.2f ", a); } public float addParam ( int a, int b ) { return a + b; } }