Given below are the two method definitions:

1. public static double Check(double x, double y)
2. public static double Check(int x, double y)

Which of the two methods is invoked for the following?

1. double z = Check (6, 5);
2. double z = Check (5.5, 7.4);

What is the signature of the following method heading?

public void CoolMethod(int xx, char yy, int zz)

A palindromic prime is a prime number and also palindromic. For example, 131, 313, and 757 are prime numbers and also palindromic prime numbers. Write a program that displays the first 100 palindromic prime numbers.

Differentiate between the following:

Call by value and Call by reference