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Category > Computer Science Posted 12 Dec 2017 My Price 10.00

import java.util.Scanner; import java.util.ArrayList;

I need to be able to sort the list by First Name, Last Name, or Gender.

I'm having a hard time figuring out how.

import java.util.Scanner;
import java.util.ArrayList;

public class Driver {

    public static void main(String[] args) {
        new Driver();

    }

    public Driver() {
        ArrayList<Student> studentList = new ArrayList<Student>();
        Scanner input = new Scanner(System.in);

        System.out.println("Select an option below");
        System.out.println("");

        while(true) {
            System.out.println("1: Add Student");
            System.out.println("2: Display Student");
            System.out.println("3: Remove Student");
            System.out.println("4: Sort Students");
            System.out.println("0: Exit");

               int userChoice = input.nextInt();
               switch(userChoice) {
               case 1:
                   addStudent(studentList);
                   break;
               case 2:
                   displayStudent(studentList);
                   break;
               case 3:
                   removeStudent(studentList);
                   break;
               case 4:
                   System.out.println("Enter Sort Type: ");
                   System.out.println("1: Sort by First Name");
                   System.out.println("2: Sort by Last Name");
                   System.out.println("3: Sort by Gender");

                   int sortType = input.nextInt();
                   switch(sortType) {
                   case 1:
                       sortStudent(); //by First Name
                       break;
                   case 2:
                       sortStudent(); //by Last Name
                       break;
                   case 3:
                       sortStudent(); //by Gender
                       break;
                   }

                   break;
               case 0:
                   System.out.println("Thank you! See you again!");
                   System.exit(0);
               }
        }
    }

    private void sortStudent() {

        }

    private void addStudent(ArrayList<Student>studentList) {
        Student newStudents = new Student();
        Scanner input = new Scanner(System.in);
        String FirstName, LastName, Gender, Major, NetID;
        double GPA;
        int Age, UIN;
        Student students;

        if(studentList.size() >= 10) {
            System.out.println("Your list is full!");
        } else {

        System.out.print("Enter First Name: ");
        FirstName = input.nextLine();
        System.out.print("Enter Last Name: ");
        LastName = input.nextLine();
        System.out.print("Enter Student Gender (M for Male and F for Female): ");
        Gender = input.nextLine();

        while(!Gender.equalsIgnoreCase("M") && !Gender.equalsIgnoreCase("F")) {
            System.out.print("Please select: M or F, Try Again: ");
            Gender = input.nextLine();
        }


        newStudents.setFirstName(FirstName);
        newStudents.setLastName(LastName);
        newStudents.setGender(Gender);


        studentList.add(studentList.size(), newStudents);

        System.out.println("Added!");
        System.out.println("");

    }
    }

    private void removeStudent(ArrayList<Student>studentList) {
        Scanner input = new Scanner(System.in);
        String RemoveFirstName;
        boolean found = false;

        if(studentList.isEmpty()){
            System.out.println("List is empty!");
            System.out.println("");
        } else {
            System.out.print("Enter NetID of Student to remove: ");
            RemoveFirstName = input.nextLine();
            for(int i = 0; i < studentList.size(); i++) {
                if(studentList.get(i).getFirstName().equalsIgnoreCase(RemoveFirstName)) {
                    studentList.remove(i);
                    System.out.println("Removed!");
                    System.out.println("");
                    found = true;
                    break;
                }
            }
            if(found) {

            } else {
                System.out.println("No Match!");
                System.out.println("");
            }
        }


    }


    private void displayStudent(ArrayList<Student>studentList) {
        if(studentList.isEmpty()) {
            System.out.println("List is empty!");
            System.out.println("");
        } else {
        System.out.println("\n Student List : ");
        for(int i = 0; i < studentList.size(); i++) {
            System.out.println(studentList.get(i).toString());
            System.out.println("");
        }
        }




    }
    }

Answers

SophiaPretty

(5)

Status NEW Posted 12 Dec 2017 11:12 AM My Price 10.00

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