Sixth Week Term Work Program 1 [ IA-1 3 A) ]

Question:
 Write a Java program to create the below-mentioned Student record using appropriate
Collection class to perform the following operations on a single student:
a. Add a student
b. Display all the details of the student
c. Delete/remove student record
Members of the class Student is given below:

Student
name
USN
division
CGPA


Solution:
import java.util.ArrayList;
import java.util.Iterator;
import java.util.Scanner;
public class SingleStudentRecord {
 ArrayList<Comparable> stud=new   ArrayList<Comparable>(4);
static Scanner in=new Scanner(System.in);
public void EnterRecord() {
System.out.print("Enter The Name:");
stud.add(in.next());
System.out.println();
System.out.print("Enter The USN:");
stud.add(in.next());
System.out.println();
System.out.print("Enter The Division:");
stud.add(in.next());
System.out.println();
System.out.print("Enter The CGPA:");
stud.add(in.nextFloat());
System.out.println();
}
public void DisplayRecord() {
Iterator<Comparable> itr=stud.iterator();
while(itr.hasNext()) {
System.out.println(itr.next());
}        

}
public void DeleteRecord() {
System.out.println("Deleted The Student Record");
stud.removeAll(stud);
}
public static void main(String[] args) {
SingleStudentRecord s=new SingleStudentRecord();
int choice;
int i=0;
    while (true) {
        System.out.println("\n\n*******************STUDENT RECORD*******************\n");
        System.out.println("1. Enter Student Record");
        System.out.println("2. Display Record");
        System.out.println("3. Delete Record");
        System.out.println("4. Exit");
        System.out.println("Enter choice: ");
        choice = in.nextInt();
        switch (choice) {
        case 1: if(i==0)
        {
        s.EnterRecord();
        i++;
        }
        else {
        System.out.println("U Can Store Only One Student Record");
        }
                break;
        case 2:
        if(i==1)
        {
        s.DisplayRecord();
        }
        else {
        System.out.println("No Record Exists");
        }
        break;
        case 3:if(i==1) {
        s.DeleteRecord();
        i--;
        }
        else {
        System.out.println("No Record To delete");
        }
        break;
        case 4:
        System.out.println("THANKS FOR VISTING");
        System.exit(0);
        break;
        default:
        System.out.println("Enter A Valid Option");

}
}
}
}

Output:

**********STUDENT RECORD**********

1. Enter Student Record
2. Display Record
3. Delete Record
4. Exit
Enter choice: 
1
Enter The Name:Amit

Enter The USN:2Sd16cs012

Enter The Division:B

Enter The CGPA:8.4


Enter choice: 
2
Amit
2Sd16cs012
B
8.4


Enter choice: 
3
Deleted The Student Record


Enter choice: 
4
THANKS FOR VISTING