package loanpayment;
import java.io.*;
import java.util.Scanner;
public class LoanPayment {
public static void main(String[] args) {
Scanner bt = new Scanner(System.in);
String filePath = "accountsalreadyregistered.txt";
System.out.println("Xxxxxxxxxxxxxxxxxxxxxxxxx- LOAN PAYMENT -
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxX");
System.out.println("Log in OR Register");
System.out.println("Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxX");
// Loop to handle invalid input for the "Sign In" or "Register" choice
int choice = 0;
while (true) {
System.out.println("Choose an option:");
System.out.println("1. Sign in");
System.out.println("2. Register");
System.out.print("Enter your choice (1 or 2): ");
if (bt.hasNextInt()) {
choice = bt.nextInt();
bt.nextLine(); // consume the newline character
if (choice == 1 || choice == 2) {
break; // valid input, exit the loop
} else {
System.out.println("Invalid choice. Please enter 1 or 2.");
}
} else {
System.out.println("Invalid input. Please enter a number (1 or 2).");
bt.next(); // consume invalid input
}
}
// Proceed based on user's choice
if (choice == 1) {
System.out.println("Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxX");
System.out.println("Sign in");
System.out.print("USER ID: ");
String userId = bt.nextLine();
System.out.print("PASSWORD: ");
String password = bt.nextLine();
if (isAccountExist(filePath, userId, password)) {
System.out.println("Welcome back! You have successfully logged in with USER ID: "
+ userId);
showLoanMenu(bt, userId);
} else {
System.out.println("You don't have an account. Redirecting to registration...");
register(bt, filePath);
}
} else if (choice == 2) {
register(bt, filePath);
}
}
public static boolean isAccountExist(String filePath, String userId, String password) {
try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
String line;
while ((line = reader.readLine()) != null) {
String[] account = line.split(",");
if (account[0].equals(userId) && account[1].equals(password)) {
return true;
}
}
} catch (FileNotFoundException e) {
System.out.println("No accounts found. Please register first.");
} catch (IOException e) {
e.printStackTrace();
}
return false;
}
public static void saveAccount(String filePath, String idType, String gender, String firstName,
String lastName, String middleName,
Integer age, String dob, String address, String email, String
contactNumber,
String userId, String password) {
try (BufferedWriter writer = new BufferedWriter(new FileWriter(filePath, true))) {
writer.write(userId + "," + password + "," + idType + "," + gender + "," + firstName + "," +
lastName + "," + middleName + ","
+ age + "," + dob + "," + address + "," + email + "," + contactNumber);
writer.newLine();
} catch (IOException e) {
e.printStackTrace();
}
}
public static void register(Scanner bt, String filePath) {
System.out.println("Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxX");
System.out.println("Register");
System.out.println("PERSONAL INFORMATION:");
// ID Type Selection with invalid input handling
System.out.println("ID Type:");
System.out.println("1. Philippine Passport (DFA)");
System.out.println("2. National ID");
System.out.println("3. SSS ID or SSS UMID Card (SSS)");
System.out.println("4. GSIS ID or GSIS UMID Card (GSIS)");
System.out.println("5. Driver's License (LTO)");
System.out.println("6. Voter's ID (COMELEC)");
System.out.println("7. Senior Citizen ID (LGU)");
System.out.println("8. PWD ID (LGU)");
System.out.println("9. NBI Clearance");
System.out.println("10. PhilHealth ID");
System.out.println("11. Government Office/GOCC ID");
int idChoice = -1;
while (idChoice < 1 || idChoice > 11) {
System.out.print("Enter your ID choice (1-11): ");
if (bt.hasNextInt()) {
idChoice = bt.nextInt();
if (idChoice < 1 || idChoice > 11) {
System.out.println("Invalid choice. Please select a valid ID type.");
}
} else {
System.out.println("Invalid input. Please enter a number between 1 and 11.");
bt.next(); // consume invalid input
}
}
bt.nextLine(); // consume newline
String idType = getIdType(idChoice);
// Gender Input with invalid input handling
String gender = "";
while (!gender.equalsIgnoreCase("Male") && !gender.equalsIgnoreCase("Female")) {
System.out.print("Enter your GENDER (Male/Female): ");
gender = bt.nextLine();
if (!gender.equalsIgnoreCase("Male") && !gender.equalsIgnoreCase("Female")) {
System.out.println("Invalid input. Please enter 'Male' or 'Female'.");
}
}
// Name Inputs with Validation
String firstName = "";
while (firstName.isEmpty()) {
System.out.print("FIRSTNAME: ");
firstName = bt.nextLine();
if (firstName.isEmpty()) {
System.out.println("First name is required. Please enter it.");
}
}
String lastName = "";
while (lastName.isEmpty()) {
System.out.print("LASTNAME: ");
lastName = bt.nextLine();
if (lastName.isEmpty()) {
System.out.println("Last name is required. Please enter it.");
}
}
System.out.print("MIDDLE NAME: (optional) ");
String middleName = bt.nextLine();
// Age Input with Validation
Integer age = null;
while (age == null || age < 18) {
System.out.print("AGE: ");
if (bt.hasNextInt()) {
age = bt.nextInt();
if (age < 18) {
System.out.println("Sorry, you must be at least 18 years old to register.");
}
} else {
System.out.println("Please enter a valid number for age.");
bt.next(); // consume invalid input
}
}
bt.nextLine(); // consume newline
// Date of Birth Input
String dob = "";
while (dob.isEmpty()) {
System.out.print("DATE OF BIRTH (e.g., 01/01/1990): ");
dob = bt.nextLine();
if (dob.isEmpty()) {
System.out.println("Date of birth is required.");
}
}
// Address Input
String address = "";
while (address.isEmpty()) {
System.out.print("ADDRESS: ");
address = bt.nextLine();
if (address.isEmpty()) {
System.out.println("Address is required.");
}
}
// Email Input
String email = "";
while (email.isEmpty()) {
System.out.print("EMAIL: ");
email = bt.nextLine();
if (email.isEmpty()) {
System.out.println("Email is required.");
}
}
// Contact Number Input
String contactNumber = "";
while (contactNumber.isEmpty()) {
System.out.print("CONTACT NUMBER (e.g., 09********1): ");
contactNumber = bt.nextLine();
if (contactNumber.isEmpty()) {
System.out.println("Contact number is required.");
}
}
// User ID and Password Input
String userId = "";
while (userId.isEmpty()) {
System.out.print("USER ID: ");
userId = bt.nextLine();
if (userId.isEmpty()) {
System.out.println("User ID is required.");
}
}
String password = "";
while (password.isEmpty()) {
System.out.print("PASSWORD: ");
password = bt.nextLine();
if (password.isEmpty()) {
System.out.println("Password is required.");
}
}
// Save the account
saveAccount(filePath, idType, gender, firstName, lastName, middleName, age, dob,
address, email, contactNumber, userId, password);
System.out.println("Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxX");
System.out.println("Thank you for registering! Here are your details:");
System.out.println("ID TYPE: " + idType);
System.out.println("GENDER: " + gender);
System.out.println("FIRSTNAME: " + firstName);
System.out.println("LASTNAME: " + lastName);
System.out.println("MIDDLE NAME: " + middleName);
System.out.println("AGE: " + age);
System.out.println("DATE OF BIRTH: " + dob);
System.out.println("ADDRESS: " + address);
System.out.println("EMAIL: " + email);
System.out.println("CONTACT NUMBER: " + contactNumber);
System.out.println("USER ID: " + userId);
System.out.println("You have successfully registered.");
// Redirect to the Home Screen after Registration
System.out.println("Redirecting to the Home Screen...");
showLoanMenu(bt, userId); // Direct to home screen after registration
}
public static String getIdType(int idChoice) {
switch (idChoice) {
case 1: return "Philippine Passport (DFA)";
case 2: return "National ID";
case 3: return "SSS ID or SSS UMID Card (SSS)";
case 4: return "GSIS ID or GSIS UMID Card (GSIS)";
case 5: return "Driver's License (LTO)";
case 6: return "Voter's ID (COMELEC)";
case 7: return "Senior Citizen ID (LGU)";
case 8: return "PWD ID (LGU)";
case 9: return "NBI Clearance";
case 10: return "PhilHealth ID";
case 11: return "Government Office/GOCC ID";
}
return null;
}
public static void showLoanMenu(Scanner bt, String userId) {
boolean continueMenu = true;
while (continueMenu) {
System.out.println("Xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxX");
System.out.println("Home Screen - Loan Management Menu:");
System.out.println("1. Apply for a Loan");
System.out.println("2. Check Loan Status");
System.out.println("3. Make Loan Repayment");
System.out.println("4. View Loan History");
System.out.println("5. View Personal Information");
System.out.println("6. Exit");
System.out.print("Enter your choice (1-6): ");
int loanChoice = bt.nextInt();
bt.nextLine();
switch (loanChoice) {
case 1:
applyForLoan(bt, userId);
break;
case 2:
checkLoanStatus(userId);
break;
case 3:
makeLoanRepayment(bt, userId);
break;
case 4:
viewLoanHistory(userId);
break;
case 5:
viewPersonalInformation(userId); // View personal information
break;
case 6:
continueMenu = false; // Exit the loop and return to the main menu
break;
default:
System.out.println("Invalid choice. Please try again.");
}
}
}
public static void viewPersonalInformation(String userId) {
System.out.println("Fetching personal information for USER ID: " + userId);
try (BufferedReader reader = new BufferedReader(new
FileReader("accountsalreadyregistered.txt"))) {
String line;
while ((line = reader.readLine()) != null) {
String[] account = line.split(",");
if (account[0].equals(userId)) {
System.out.println("ID TYPE: " + account[2]);
System.out.println("GENDER: " + account[3]);
System.out.println("FIRSTNAME: " + account[4]);
System.out.println("LASTNAME: " + account[5]);
System.out.println("MIDDLE NAME: " + account[6]);
System.out.println("AGE: " + account[7]);
System.out.println("DATE OF BIRTH: " + account[8]);
System.out.println("ADDRESS: " + account[9]);
System.out.println("EMAIL: " + account[10]);
System.out.println("CONTACT NUMBER: " + account[11]);
System.out.println("USER ID: " + account[0]);
}
}
} catch (IOException e) {
e.printStackTrace();
}
}
// Placeholder methods for loan management features
public static void checkLoanStatus(String userId) {
System.out.println("Checking loan status for USER ID: " + userId);
// Implement the logic for checking loan status here
}
public static void makeLoanRepayment(Scanner bt, String userId) {
System.out.println("Making loan repayment for USER ID: " + userId);
// Implement loan repayment logic here
}
public static void viewLoanHistory(String userId) {
System.out.println("Viewing loan history for USER ID: " + userId);
// Implement loan history view logic here
}
public static void applyForLoan(Scanner bt, String userId) {
System.out.println("Before you apply for the loan, please answer the following questions:");
// Question 1: Do you have a steady source of income? (Yes/No)
String income = "";
while (!income.equalsIgnoreCase("Yes") && !income.equalsIgnoreCase("No")) {
System.out.println("Question 1: Do you have a steady source of income? (Yes/No): ");
income = bt.nextLine();
if (!income.equalsIgnoreCase("Yes") && !income.equalsIgnoreCase("No")) {
System.out.println("Invalid input. Please answer 'Yes' or 'No'.");
}
}
// Question 2: Have you taken a loan in the last 6 months? (Yes/No)
String loanHistory = "";
while (!loanHistory.equalsIgnoreCase("Yes") && !loanHistory.equalsIgnoreCase("No")) {
System.out.println("Question 2: Have you taken a loan in the last 6 months? (Yes/No): ");
loanHistory = bt.nextLine();
if (!loanHistory.equalsIgnoreCase("Yes") && !loanHistory.equalsIgnoreCase("No")) {
System.out.println("Invalid input. Please answer 'Yes' or 'No'.");
}
}
// Question 3: Are you currently employed? (Yes/No)
String employmentStatus = "";
while (!employmentStatus.equalsIgnoreCase("Yes") && !
employmentStatus.equalsIgnoreCase("No")) {
System.out.println("Question 3: Are you currently employed? (Yes/No): ");
employmentStatus = bt.nextLine();
if (!employmentStatus.equalsIgnoreCase("Yes") && !
employmentStatus.equalsIgnoreCase("No")) {
System.out.println("Invalid input. Please answer 'Yes' or 'No'.");
}
}
// Question 4: Do you have any existing loans? (Yes/No)
String existingLoans = "";
while (!existingLoans.equalsIgnoreCase("Yes") && !existingLoans.equalsIgnoreCase("No")) {
System.out.println("Question 4: Do you have any existing loans? (Yes/No): ");
existingLoans = bt.nextLine();
if (!existingLoans.equalsIgnoreCase("Yes") && !existingLoans.equalsIgnoreCase("No")) {
System.out.println("Invalid input. Please answer 'Yes' or 'No'.");
}
}
// Question 5: What is your monthly salary?
double monthlySalary = -1;
while (monthlySalary <= 0) {
System.out.print("Question 5: What is your monthly salary? ");
if (bt.hasNextDouble()) {
monthlySalary = bt.nextDouble();
bt.nextLine(); // consume the newline
if (monthlySalary <= 0) {
System.out.println("Please enter a valid positive number for salary.");
}
} else {
System.out.println("Invalid input. Please enter a valid number for salary.");
bt.next(); // consume invalid input
}
}
// Loan calculation based on salary
double loanAmount = 0;
double interestRate = 0;
int repaymentPeriod = 0;
if (monthlySalary <= 15000) {
loanAmount = 25000; // max loan
interestRate = 0.08; // 8% interest
repaymentPeriod = (int)(Math.random() * 4) + 3; // 3 to 6 months
} else if (monthlySalary <= 30000) {
loanAmount = 50000; // max loan
interestRate = 0.10; // 10% interest
repaymentPeriod = (int)(Math.random() * 4) + 3; // 3 to 6 months or 12 months
} else if (monthlySalary >= 50000) {
loanAmount = 100000; // max loan
interestRate = 0.12; // 12% interest
repaymentPeriod = (int)(Math.random() * 3) + 6; // 6 to 12 months or 18 months
}
// Simulate Loan Application Approval Based on Answers
if (income.equalsIgnoreCase("Yes") && loanHistory.equalsIgnoreCase("No") &&
employmentStatus.equalsIgnoreCase("Yes")
&& existingLoans.equalsIgnoreCase("No")) {
System.out.println("Congratulations, your loan application is approved!");
System.out.println("You are eligible for a loan of " + loanAmount + " with an interest rate of
" + (interestRate * 100) + "%.");
System.out.println("Repayment period: " + repaymentPeriod + " months.");
double totalAmount = loanAmount + (loanAmount * interestRate);
System.out.println("Total amount to be repaid: " + totalAmount);
} else {
System.out.println("Sorry, your loan application has been rejected due to one or more
criteria not being met.");
}
}
