Q$\mathrm{.}1.$ SET A

Write a program to create a class called Divisors. Divisors has a

method$($printdivisors$)$ to print all divisors for a given number. Write a Java program

to create three threads and all of them share same object of Divisors class.

Thread $1$ has to print divisors of $20.$

Thread $2$ has to print divisors of $40.$

Thread $3$ has to print divisors of $60.$

Please ensure that thread outputs are overlapped while printing the divisors using

two thread synchronization approaches $($method and block level$)$

$(8$ Marks$)$

Q $2.$ SET $A$

A Shell Company Ra$$zen is recruiting the workers for daily wages. To recruit them,

the company consider only the age. The valid age to work in the company is between

$18$ to $58.$ You are asked to create a code in Java for recruiting the employees. The

code should display "Permitted to work at Shell!!!" if the age is between $18$ to $58.$

Otherwise it has to throw your own exception class $($InvalidAgeException$)$ object

displaying "Not Permitted to work at Shell!!!".

$(8$ Marks$)$

Q $3.$ SET $A$

Assume that a file named "Employee.dat" contains $50$ Employee records $.$ Each

employee record contains Empld,EmpName, Designation and NetSalary. Write a

Java program to read an Employee Id and display the details of the Employee

$(8$ Marks$)$

Q $4.$ SET $A$

Assume that a linked list contains $\text{'}n\text{'}$ Strings. Write a Java program to read a

character C and count the number of strings that has the character C in the

Middle.

$(8$ Marks$)$

Q $5.$ SET A

For the upcoming examination, a student has two subjects $($Subject $1$ and Subject $2).$

A student can prepare any of the subjects by creating an instance for the

corresponding subject class. He $/$ She may learn the subjects more one than time in

a day. Write a Java program to display which of these courses are learned more on a

particular day.