$11.$ Programming Problems $($Total points $=0\mathrm{.}5*4=2\mathrm{.}0)$

a$.$ Seconds Conversion: Write a Java program that reads an integer value expressing seconds greater than $0.$ and outputs the equivalent years$($Y$),$ days $($D$),$ hours $($H$),$ minutes $($M$),$ and seconds $($S$).(365$ days a year, $24$ hours a day$).$ Please see the table below for the example inputs and the corresponding outputs. Test your program for the following input values $-100000,1000000000$ provide screenshots of the input and output of your program execution.

Input Output

$590$Y $0$D $0$H $0$M $59$S

$38000$Y $0$D $1$H $3$M $20$S

$864000$Y $1$D $0$H $0$M $0$S

b$.$ Integer Breakdown: Write a Java program that reads a $10-$digit number representing a phone number breaks it down into an area code, prefix, and line number, and finally outputs the area code, prefix, and line number in a formatted string. For example $-$ if the input is $7533571313$ then the output would be $(753)-357-1313$ where $753$ is the area code, $357$ is the prefix and $1313$ is the line number. For convenience, you can assume that all the digits will be greater than $0.$

c$.$ Void Diamond: Write a Java program that reads an odd integer value N as input where N$>=3$ and prints a hollow diamond. See the attached PDF file for detailed examples.

d$.$ Find the number of award$-$eligible students and underperforming students: Hypothetically, XXXX students have enrolled in Spring $2024$ in the various departments at YYYY State University. Each student has a name, student ID$,$ and CGPA. Now, the campus wants to present an award $($summa cum laude$)$ to the students with the CGPA $3\mathrm{.}9$ and above. The campus also wants to reduce the number of dropout students and wants to know about the number of students with a CGPA of $3$ and below. As a computer science student, you are tasked with writing an object$-$oriented program that reads total student no$,$ and each student's information $($name$,$ ID$,$ and CGPA$)$ as input, stores them, and prints the count of the number of award$-$eligible students and their associated information $($name$,$ ID$,$ and CGPA$)$ and also count the underperforming students and their associated information. To achieve full credit your program has to successfully take inputs, store them, and achieve the intended goal of counting and printing students number and information.

Input characteristics and conditions:

$1.$ Total student no is an integer and greater than $10$

$2.$ The name is a String

$3.$ CGPA is double, and CGPA $>0$

$4.$ Student ID is integer

$5.$ You must use reference type $($user$-$defined$)$ variables to store the student's information and can not directly use individual arrays to store name, student ID$,$ and CGPA

$6.$ You can not use ArrayList, LinkedList, HashMap, HashSet, or similar data types in your program $($Hint: Array of objects$)$

Output:

$1.$ Number of award$-$eligible, underperforming students and their associated information.

Hints: Java Class, Method calling, Sequential searching

Test input $1$: Students.txt

Students.txt

Abc $1233\mathrm{.}5$

Abd $123\mathrm{.}0$

Pqm $123\mathrm{.}8$

Xyz $4563\mathrm{.}3$

Yzx $6783\mathrm{.}9$

Test output:

$1$

Yzx has a CGPA $3\mathrm{.}9$ or above

$1$

Abd has a CGPA $3\mathrm{.}0$ or lower