1. Create a class named 'Student' with String variable 'name' and integer variable 'roll_no'. Assign the value of roll_no as ' 2 ' and that of name as "John" by creating an object of the class Student. (2 mark) 2. What is the difference between getter and setter methods (2 mark) 3. Write a Java program to test if the array Q contains this value (5) by using two algorithms: - Sequential Search: - Binary Search: Q=[2,4,5,7,9,11,15](4mark)