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import java.text.ParseException; import java.text.SimpleDateFormat; import java.util.ArrayList; import java.util.Date; import java.util.HashMap; import java.util.List; import java.util.Map; import java.util.Scanner;
public class LMSImpl {
static List books = new ArrayList(); static Map<Integer, ArrayList> hm = new HashMap<Integer, ArrayList> ();
public static void main(String[] args) { addIssueDetails(); System.out.println("Library Management System"); System.out.println("Press 1 to add Book"); System.out.println("Press 2 to issue a book");
System.out.println("Press 3 to return a book"); System.out.println("Press 4 to print the book details"); System.out.println("Press 5 to print complete issue detais"); System.out.println("Press 6 to exit"); Scanner c = new Scanner(System.in); int choice = c.nextInt(); do { switch (choice) { case 1: addBook(); break; case 2: issueBook(); break; case 3: returnBook(); break; case 4: printBookDetails();
for (BookIssueDetails b : entry.getValue()) { System.out.println(entry.getKey() + " " + b.getBookNumber()
- " " + b.getName() + " " + b.getNoOfBookIssued()
- " " + b.getIssueDate() + " " + b.getReturnDate()); } } }
private static void printBookDetails() { for (BookDetails b : books) { System.out.print(b.getBookNumber() + " " + b.getBookName() + " "
- b.getCount() + " " + b.getPrice()); } }
private static void returnBook() { System.out.println("Enter studentId & bookId"); Scanner c = new Scanner(System.in); int id = c.nextInt();
int bookId = c.nextInt(); List bd = hm.get(id); for (BookIssueDetails b : bd) { if (b.getBookNumber() == bookId) { Date issueDate = b.getIssueDate(); Date todayDate = new Date();
long diff = todayDate.getTime() - issueDate.getTime();
long diffDays = diff / (24 * 60 * 60 * 1000);
if (diffDays > 10) { int fine = (int) (diffDays - 10); fine = fine * 10; System.out.println("Total Fine " + fine + " Rs."); } } }
hm.put(104, list4);
}
private static void issueBook() { System.out.println("Enter Student Id,Booknumber, name and price"); Scanner c = new Scanner(System.in); int studentId = c.nextInt(); Scanner c1 = new Scanner(System.in); int bookNumber = c1.nextInt(); Scanner c2 = new Scanner(System.in); String name = c2.nextLine(); Scanner c3 = new Scanner(System.in); String issueDate = c3.nextLine(); BookIssueDetails newIssuedBook = new BookIssueDetails(); newIssuedBook.setName(name); newIssuedBook.setBookNumer(bookNumber);
ArrayList l=new ArrayList();
SimpleDateFormat formatter = new SimpleDateFormat("dd-MMM-yyyy");
try {
Date date = formatter.parse(issueDate); newIssuedBook.setIssueDate(date);
} catch (ParseException e) { e.printStackTrace(); }
List list = hm.get(studentId); for (BookIssueDetails b : list) { int value = b.getNoOfBookIssued(); newIssuedBook.setNoOfBookIssued(++value); l.add(newIssuedBook);
package com.lms;
import java.util.Date;
public class BookIssueDetails {
private int bookNumber; private String name; private int totalBookAllowed = 2; private int noOfBookIssued=0; private Date issueDate; private Date returnDate;
public BookIssueDetails(int bookNumber,String name,int n,Date issueDate) {
this.bookNumber=bookNumber; this.name=name; this.noOfBookIssued=n; this.issueDate=issueDate; }
public BookIssueDetails() { }
public int getBookNumber() { return bookNumber; }
public void setBookNumer(int bookNumber) { this.bookNumber = bookNumber; }
public int getNoOfBookIssued() { return noOfBookIssued;
this.returnDate = returnDate; }
public String getName() { return name; }
public void setName(String name) { this.name = name; }
public int getTotalBookAllowed() { return totalBookAllowed; }
public void setTotalBookAllowed(int totalBookAllowed) { this.totalBookAllowed = totalBookAllowed; }
package com.lms;
public class BookDetails { private int bookNumber; private String bookName; private Double price; private int count;
public BookDetails(int bookNumber,String name,Double price) { this.bookNumber=bookNumber; this.bookName=name; this.price=price;
public void setBookName(String bookName) { this.bookName = bookName; }
public Double getPrice() { return price; }
public void setPrice(Double price) { this.price = price; } }
package com.lms;
public class StudentDetails {
private int studentId; private String studentName; private String className;
public int getStudentId() { return studentId; }
public void setStudentId(int studentId) { this.studentId = studentId; }
public String getStudentName() { return studentName; }
public void setStudentName(String studentName) { this.studentName = studentName; }
