Student
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2 years ago
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import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;
public class Student extends Person {
private int numOfModules, numOfRepeatModules;
private double amount_paid, total_amount, balance, dep_amount;
private static final int ModulePrice = 525, RepeatedModulePrice = 110;
public static List<Student> studentList = new ArrayList<>();
// Constructor Student
public Student(int ID, String Fname, String Lname, String Gender, String PhoneNum, String Address, int numOfModules, int numOfRepeatModules, double amount_paid, double total_amount, double balance) {
super(ID, Fname, Lname, Gender, PhoneNum, Address);
this.numOfModules = numOfModules;
this.numOfRepeatModules = numOfRepeatModules;
this.amount_paid = amount_paid;
this.total_amount = total_amount;
this.balance = balance;
}
public int getNumOfModules() { return numOfModules; }
public void setNumOfModules(int numOfModules) { this.numOfModules = numOfModules; }
public int getRep_modules() { return numOfRepeatModules; }
public void setRep_modules(int numOfRepeatModules) { this.numOfRepeatModules = numOfRepeatModules; }
public double getAmount_paid() { return amount_paid; }
public void setAmount_paid(double amount_paid) { this.amount_paid = amount_paid; }
public double getTotal(){ return total_amount; }
public void setTotal(){ this.total_amount = total_amount; }
public double getBalance(){ return balance; }
public double setBalance(double balance){ this.balance = balance; return 0; }
public double getDep_amount() { return dep_amount; }
public void setDep_amount(double dep_amount) { this.dep_amount = dep_amount; }
static void add_student() {
System.out.println("====================================================");
System.out.println("\t\t\t\t<< ADD NEW STUDENT >>");
System.out.println("====================================================\n");
Scanner in = new Scanner(System.in).useDelimiter("\n");
System.out.print("Enter ID: ");
// Initialize addID variable to zero to only accept integer values
int addID = 0;
// Validation for Student ID
if(in.hasNextInt()){
addID = in.nextInt();
for (int i = 0; i < studentList.size(); i++) {
if (addID == studentList.get(i).getID()) {
System.out.println("ID is already registered!");
Main.sysPause();
return;
}
}
}
else {
System.out.println("Please enter a valid input!");
Main.sysPause();
return;
}
System.out.print("Enter First Name: ");
String addFirstname = in.next();
System.out.print("Enter Last Name: ");
String addLastname = in.next();
System.out.print("Enter Gender: ");
String addGender = in.next();
System.out.print("Enter Phone Number: ");
String addPhone = in.next();
System.out.print("Enter Address: ");
String addAddress = in.next();
System.out.print("Enter Number of Modules: ");
int addModules = in.nextInt();
/* //variable type validation
if(in.hasNextInt()) {
}
else {
System.out.println("Please enter a valid input!");
Main.sysPause();
return;
}
*/
System.out.print("Enter Number of Repeated Modules: ");
int addRepModules = in.nextInt();
// Constraint the user to only input less than or equal than 6 modules
if ((addModules + addRepModules) > 6) {
System.out.println("You cannot get more than 6 modules for this semester!");
return;
} else if (addModules !=0 && addRepModules > 2) {
System.out.println("You cannot take a new module if you want to take more than 2 repeated modules this semester!");
return;
}
double total_amount = (ModulePrice * addModules) + (RepeatedModulePrice * addRepModules);
System.out.println("Total: " + total_amount);
System.out.print("Enter Amount Paid: ");
double addAmount = in.nextDouble();
if(addAmount > total_amount){
System.out.println("Cannot pay more than " + total_amount);
Main.sysPause();
return;
}
double balance = total_amount - addAmount;
System.out.print("\n\t\t\t\t Account Status ");
// Inform user that 1 student has been added
System.out.println("\nSuccessfully Added Student #" + addID + " to the Database!");
// store all inputs of user inside the constructor
Student studentobj = new Student(addID, addFirstname, addLastname, addGender, addPhone, addAddress, addModules, addRepModules, addAmount, total_amount, balance);
// store inside the array list
studentList.add(studentobj);
Main.YNS_Exit();
}
static void update_student() {
System.out.println("====================================================");
System.out.println("\t\t\t\t<< UPDATE STUDENT >>");
System.out.println("====================================================\n");
if (studentList.size() == 0) {
System.out.println("There are no STUDENTS registered in the database!");
Main.sysPause();
}
else {
Scanner in = new Scanner(System.in).useDelimiter("\n");
System.out.print("Enter ID: ");
int upID = in.nextInt();
for (int j = 0; j < studentList.size(); j++) {
if (studentList.get(j).getID() != upID) {
System.out.println(upID + " does not exist in the database!");
Main.sysPause();
return;
}
}
for (int i = 0; i < studentList.size(); i++) {
if (upID == studentList.get(i).getID()) {
System.out.println("Student#" + upID);
System.out.println("\nName: " + studentList.get(i).getFName() + " " + studentList.get(i).getLName());
System.out.println("Gender: " + studentList.get(i).getGender());
System.out.println("Phone Number: " + studentList.get(i).getPhoneNum());
System.out.println("Address: " + studentList.get(i).getAddress());
System.out.println("Number of Modules: " + studentList.get(i).getNumOfModules());
System.out.println("Number of Repeated Modules: " + studentList.get(i).getRep_modules());
System.out.println("====================================================");
System.out.println("\t\t\t\t\t<< UPDATE >>");
System.out.println("====================================================\n");
System.out.println("[1] Student Number");
System.out.println("[2] Name");
System.out.println("[3] Gender");
System.out.println("[4] Phone Number");
System.out.println("[5] Address ");
System.out.println("[6] Number of Modules");
System.out.println("[7] Number of Repeated Modules");
System.out.println("[8] Cancel");
switch (Main.choice()) {
case 1:
System.out.println("====================================================");
System.out.println("\t\t\t<< UPDATE STUDENT NUMBER >>");
System.out.println("====================================================\n");
System.out.print("Enter new Student Number (ex.202110139): ");
int updateID = in.nextInt();
for (int k = 0; k < studentList.size(); k++) {
if (updateID == studentList.get(k).getID()) {
System.out.println(updateID + " is already registered! please try again");
Main.sysPause();
return;
}
}
studentList.get(i).setID(updateID);
System.out.println("\nStudent ID has been updated!");
Main.sysPause();
break;
case 2:
System.out.println("====================================================");
System.out.println("\t\t\t << UPDATE STUDENT NAME >>");
System.out.println("====================================================\n");
System.out.println("Enter Student Name ");
System.out.print("Enter First name: ");
String updateFName = in.next();
System.out.print("Enter Last name");
String updateLName = in.next();
studentList.get(i).setFName(updateFName);
studentList.get(i).setLName(updateLName);
System.out.println("\nStudent name has been updated!");
break;
case 3:
System.out.println("====================================================");
System.out.println("\t\t\t << UPDATE STUDENT GENDER >>");
System.out.println("====================================================\n");
System.out.printf("Enter Gender: ");
String updateGender = in.next();
studentList.get(i).setGender(updateGender);
System.out.printf("\nStudent's Gender has been updated!");
Main.sysPause();
break;
case 4:
System.out.println("====================================================");
System.out.println("\t\t\t << UPDATE PHONE NUMBER >>");
System.out.println("====================================================\n");
System.out.print("Enter your new Phone Number: ");
String updatePhone = in.next();
// setter (setPhoneNum) used to update the current phone number
studentList.get(i).setPhoneNum(updatePhone);
System.out.println("\nPhone Number has been updated!");
Main.sysPause();
break;
case 5:
System.out.println("====================================================");
System.out.println("\t\t\t\t<< UPDATE ADDRESS >>");
System.out.println("====================================================\n");
System.out.print("Enter your new Address: ");
String newAddress = in.next();
studentList.get(i).setAddress(newAddress);
System.out.println("\nAddress has been updated!");
Main.sysPause();
break;
case 6:
System.out.println("====================================================");
System.out.println("\t\t\t\t<< UPDATE MODULES >>");
System.out.println("====================================================\n");
System.out.print("Update Number Modules: ");
int updateModules = in.nextInt();
// check if user still takes 6 module
if (updateModules + studentList.get(i).numOfRepeatModules > 6) {
System.out.println("Cannot take more than 6 total modules");
Main.sysPause();
return;
} else {
studentList.get(i).setNumOfModules(updateModules);
System.out.println("\nModules Have been updated!");
Main.sysPause();
}
break;
case 7:
System.out.println("====================================================");
System.out.println("\t\t\t<< UPDATE REPEATED MODULES >>");
System.out.println("====================================================\n");
System.out.println("Update Repeated Modules: ");
int updateRepeatedModules = in.nextInt();
// check if user still takes 6 module
if(studentList.get(i).numOfModules !=0 && updateRepeatedModules > 2){
System.out.println("Cannot take more than 2 repeated modules!");
Main.sysPause();
return;
}
else if((updateRepeatedModules + studentList.get(i).numOfModules) > 6){
System.out.println("Cannot take more than 6 total modules!");
Main.sysPause();
return;
}
else{
studentList.get(i).setRep_modules(updateRepeatedModules);
System.out.println("\n Repeated Modules have been Updated");
Main.sysPause();
}
break;
case 8:
System.out.println("\nReturning to the Main Menu...");
Main.sysPause();
break;
default:
System.out.println("Invalid Input! \n Exiting Program...");
Main.sysPause();
System.exit(0);
}
}
}
}
}
static void delete_student() {
System.out.println("====================================================");
System.out.println("\t\t\t\t<< DELETE STUDENT >>");
System.out.println("====================================================\n");
if (studentList.size() == 0) {
System.out.println("There are no STUDENTS registered in the database!");
Main.sysPause();
}
else {
Scanner in = new Scanner(System.in);
System.out.print("Enter Student ID (ex. 202110139): ");
int delID = in.nextInt();
for (int j = 0; j < studentList.size(); j++) {
if (studentList.get(j).getID() != delID) {
System.out.println(delID + " does not exist in the database!");
Main.sysPause();
return;
}
}
for (int i = 0; i < studentList.size(); i++) {
if (studentList.get(i).getID() == delID) {
System.out.println(studentList.get(i).getID() + " has been removed from the database!!");
studentList.remove(i);
Main.YNS_Exit();
if (studentList.lastIndexOf(i) == delID) {
System.out.println(studentList.get(i).getID() + " has been removed from the database!!");
studentList.remove(i);
Main.YNS_Exit();
}
}
}
Main.YNS_Exit();
}
}
static void show_balance() {
System.out.println("====================================================");
System.out.println("\t\t\t<< SHOW REMAINING BALANCE >>");
System.out.println("====================================================\n");
if (studentList.size() == 0) {
System.out.println("There are no STUDENTS registered in the database!");
Main.sysPause();
}
else {
Scanner in = new Scanner(System.in);
System.out.print("Enter Student ID (ex. 202110139): ");
int bal_ID = in.nextInt();
for (int j = 0; j < studentList.size(); j++) {
if (studentList.get(j).getID() != bal_ID) {
System.out.println(bal_ID + " does not exist in the database!");
Main.sysPause();
return;
}
}
for (int i = 0; i < studentList.size(); i++) {
if (bal_ID == studentList.get(i).getID()) {
System.out.println("Student#" + bal_ID);
System.out.println("\nRemaining Balance: " + studentList.get(i).getBalance());
Main.YNS_Exit();
}
}
}
}
static void deposit(){
System.out.println("====================================================");
System.out.println("\t\t\t\t << FEE DEPOSIT >>");
System.out.println("====================================================\n");
if(studentList.size() == 0){
System.out.println("There are no STUDENTS registered in the database!");
Main.sysPause();
}
else {
Scanner in = new Scanner(System.in);
System.out.print("Enter Student ID (ex. 202110139): ");
int deposit_ID = in.nextInt();
for (int j = 0; j < studentList.size(); j++) {
if (studentList.get(j).getID() != deposit_ID) {
System.out.println(deposit_ID + " does not exist in the database!");
Main.YNS_Exit();
}
}
System.out.print("Enter amount: ");
int dep_amount = in.nextInt();
System.out.println("Payment Successfully Posted!");
for (int i = 0; i < studentList.size(); i++) {
if (deposit_ID == studentList.get(i).getID()) {
double y = studentList.get(i).getBalance();
double updatedDeposit = y - dep_amount;
studentList.get(i).setBalance(updatedDeposit);
System.out.println("Your new balance is " + studentList.get(i).getBalance());
}
}
Main.YNS_Exit();
}
}
static void showZero(){
System.out.println("====================================================");
System.out.println("\t\t << STUDENTS WITH ZERO BALANCE >>");
System.out.println("====================================================\n");
if (studentList.size() == 0) {
System.out.println("There are no STUDENTS registered in the database!");
Main.sysPause();
return;
}
else {
for (int i = 0; i < studentList.size(); i++) {
if (studentList.get(i).getBalance() == 0) {
System.out.println("\nStudent# " + studentList.get(i).getID() + " : " + studentList.get(i).getFName() + studentList.get(i).getLName());
}
}
Main.YNS_Exit();
}
}
static void showNonZero(){
System.out.println("====================================================");
System.out.println("\t\t\t << STUDENTS WITH BALANCE >>");
System.out.println("====================================================\n");
if (studentList.size() == 0) {
System.out.println("There are no STUDENTS registered in the database!");
Main.sysPause();
return;
}
else {
for (int i = 0; i < studentList.size(); i++) {
if (studentList.get(i).getBalance() != 0) {
System.out.println("\nStudent# " + studentList.get(i).getID() + " : " + studentList.get(i).getFName() + " " + studentList.get(i).getLName());
}
}
Main.YNS_Exit();
}
}
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