(a) Using suitable examples, explain the difference between inheriting and overriding in Java. (b) Consider the following class. public class E22 \{ public int sp2(double x) \{ return (int) x; \} List headers for three instance methods that are available for all objects of class E22. (c) Consider the following method headers: (1) public String f (String a, int b) (2) public String f (int a, int b) (3) public int f (int a, String b) (4) public int f (String a, int b) (5) public int f (int x, String y ) (6) public long f (int p, String q) (7) public void f (int a, int b ) (8) public void f (int a, long b) (9) public int ff (int a, String b) (10) public void f (String k, int 1 ) Using the labels (1) through (10), partition the methods into groups so that all the methods in a group have the same signature, and methods in different groups have different signatures