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minaahilimtiazminaahilimtiaz
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‎Books.java

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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package library;
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import java.util.*;
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import java.io.*;
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import java.util.Iterator;
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import java.util.LinkedList;
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import java.util.List;
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/**
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*
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* @author Minahil Imtiaz
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*/
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public class Books {
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private int book_id;
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private String author;
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private String title;
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private String subject;
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private int quantity; //a book may have more than one quantity
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Books() {
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this.book_id = -1;
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this.author = " ";
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this.title = " ";
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this.subject = " ";
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this.quantity = 0;
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}
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Books(int book_id, String author, String title, String subject, int quantity) {
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this.book_id = book_id;
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this.author = author;
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this.title = title;
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this.subject = subject;
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this.quantity = quantity;
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}
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public void SetBookId(int book_id) {
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this.book_id = book_id;
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}
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public void SetAuthor(String author) {
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this.author = author;
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dbConnectivity db = new dbConnectivity();
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db.ChangeBookInfo(book_id, author, 2);
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}
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public void SetTitle(String title) {
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this.title = title;
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dbConnectivity db = new dbConnectivity();
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db.ChangeBookInfo(book_id, title, 1);
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}
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public void SetQuantity(int quantity) {
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this.quantity = quantity;
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dbConnectivity db = new dbConnectivity();
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db.UpdateBookQuantity(this.quantity, this.book_id);
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}
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public void SetSubject(String subject) {
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this.subject = subject;
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dbConnectivity db = new dbConnectivity();
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db.ChangeBookInfo(book_id, subject, 3);
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}
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public String GetTitle() {
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dbConnectivity db = new dbConnectivity();
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String titleofbook = db.GetTitleofBook(this.book_id);
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return titleofbook;
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}
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public String GetAuthor() {
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dbConnectivity db = new dbConnectivity();
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String authorofbook = db.GetAuthorofBook(this.book_id);
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return authorofbook;
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}
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public int GetBookId() {
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return this.book_id;
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}
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public String GetSubject() {
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dbConnectivity db = new dbConnectivity();
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String subjectofbook = db.GetSubjectofBook(this.book_id);
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return subjectofbook;
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// return this.subject;
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}
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public Books GetaBook() {
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dbConnectivity db = new dbConnectivity();
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Books MyBook = db.GetaBookbyId(this.book_id);
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return MyBook;
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}
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public int GetQuantity() {
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dbConnectivity db = new dbConnectivity();
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int quantity_available = db.GetQuantityofBook(this.book_id);
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// return this.quantity;
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return quantity_available;
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}
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public boolean ChekcAvailability(int book_id) {
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dbConnectivity db = new dbConnectivity();
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int quantity_available = db.GetQuantityofBook(this.book_id);
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if (quantity_available <= 0) {
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return false;
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} else {
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return true;
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}
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}
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public void DecreaseQuantity() {
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if (quantity > 0) {
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this.quantity = this.quantity - 1;
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dbConnectivity db = new dbConnectivity();
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db.UpdateBookQuantity(this.quantity, book_id);
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}
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}
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public void IncreaseQuantity() {
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this.quantity = this.quantity + 1;
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dbConnectivity db = new dbConnectivity();
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db.UpdateBookQuantity(this.quantity, book_id);
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}
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public String PrintInformation() {
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boolean available = ChekcAvailability(this.book_id);
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String status;
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if (available == true) {
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status = "available";
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} else {
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status = "not available";
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}
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String Resultant=" ";
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Resultant =Resultant+" "+this.book_id + "\t" + this.title + "\t" + this.author + "\t" + this.subject + "\t" + this.quantity + "\t" + status + "\n";
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return Resultant;
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}
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}

‎Borrower.java

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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
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*/
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package library;
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import java.util.*;
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import java.io.*;
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/**
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*
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* @author Minahil Imtiaz
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*/
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public class Borrower extends Users {
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private String address;
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private String telephone;
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private boolean fine_defaulter;
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private double fine;
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private ArrayList<Loan> BookLoans;
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Borrower() {
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super();
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fine_defaulter = false;
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BookLoans = null;
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fine = 0.0;
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address = " ";
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telephone = " ";
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BookLoans = new ArrayList<>();
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}
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Borrower(int user_id, String user_name, char gender, String telephone, String address, boolean fine_defaulter, double fine) {
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super(user_id, user_name, gender);
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this.fine_defaulter = fine_defaulter;
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this.fine = fine;
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this.address = address;
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this.telephone = telephone;
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BookLoans = new ArrayList<>();
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}
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@Override
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public boolean GetFineStatus() {
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// return this.fine_defaulter;
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dbConnectivity db = new dbConnectivity();
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return (db.GetFineStatus(this.GetId()));
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}
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public double GetFineAmout() {
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// return this.fine;
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dbConnectivity db = new dbConnectivity();
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return (db.GetFineAmount(this.GetId()));
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}
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public String GetAddress() {
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return this.address;
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}
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public String GetTelephone() {
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return this.telephone;
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}
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@Override
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public boolean SetFineStatus(boolean fine_defaulter) {
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this.fine_defaulter = fine_defaulter;
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dbConnectivity db = new dbConnectivity();
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boolean result = db.SetFineStatus(this.GetId(), fine_defaulter);
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return result;
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}
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public boolean SetTelephone(String Telephone) {
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this.telephone = Telephone;
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dbConnectivity db = new dbConnectivity();
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boolean result = db.SetTelephone(this.GetId(), this.telephone);
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return result;
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}
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public boolean SetAddress(String Address) {
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this.address = Address;
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dbConnectivity db = new dbConnectivity();
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boolean result = db.SetAddress(this.GetId(), this.address);
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return result;
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}
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@Override
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public void SetFineAmount(double user_fine) {
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this.fine = user_fine;
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dbConnectivity db = new dbConnectivity();
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boolean result = db.SetFineAmount(this.GetId(), user_fine);
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}
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public void SetName(String name)
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{
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super.SetName(name);
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dbConnectivity db = new dbConnectivity();
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boolean result = db.SetName(this.GetId(), name);
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}
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public void SetGender(char g)
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{
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super.SetGender(g);
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dbConnectivity db = new dbConnectivity();
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boolean result = db.SetGender(this.GetId(), g);
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}
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@Override
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public boolean AddLoanInfo(Loan LoanInfo) {
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BookLoans.add(LoanInfo);
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return true;
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// dbConnectivity db = new dbConnectivity ();
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// boolean result=db.AddLoanInfo(this.GetId(), LoanInfo);
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// return result;
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}
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public void AllLoansofUser(ArrayList<Loan> LoansofUser) {
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// this.BookLoans=LoansofUser;
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dbConnectivity db = new dbConnectivity();
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this.BookLoans = db.LoadLoanListofSpecificUser(this.GetId());
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}
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//helping function to update loan info
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@Override
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public void UpdateLoanInfo(Loan Update, int book_id) {
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// Iterator<Loan> itr = BookLoans.Iterator(BookLoans.size());
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// while (itr.hasPrevious()) {
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//
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// Loan L = itr.previous();
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for (int counter=BookLoans.size()-1 ; counter >=0; counter--){
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Loan L = BookLoans.get(counter);
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if ((L.GetaBookId() == book_id)) {
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L.SetLoan(Update);
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break;
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}
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}
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}
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//needed to be checked
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@Override
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public String ViewInformation(ArrayList<Loan> LoanList, int user_id) {
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String Resultant="";
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Resultant=Resultant+super.PrintInformation();
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Resultant+="Adress :" + address+" ";
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Resultant+="Telephone:" + telephone+" ";
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Resultant+="\n Loan Info \n";
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if (BookLoans.isEmpty() == false) {
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for (int i=0;i< BookLoans.size();i++) {
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Loan L=BookLoans.get(i);
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Resultant+=L.PrintLoanInfo();
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Resultant+="\n";
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}
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} else {
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Resultant +="NO LOANS TILL YET!";
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}
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return Resultant;
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}
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}

‎Clerk.java

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/*
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* To change this license header, choose License Headers in Project Properties.
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* To change this template file, choose Tools | Templates
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* and open the template in the editor.
5+
*/
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package library;
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/**
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*
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* @author Minahil Imtiaz
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*/
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public class Clerk extends Staff {
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Clerk(int user_id, String user_name, char gender) {
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super(user_id, user_name, gender);
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}
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}

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