1. Find and correct the error(s) in each of the following segments of codes and explain how to correct it. a) public static int sum (int x, int y) // not allowed to change { int result; result=x+y; b). public static void foo(float a); } { float a; System.out.println(a); c). int x-5; while (x>0){ x=x+2; System.out.println("x="+x); } d). int x; For (x-100, x=10, x++) System.out.println (x);