Java/Library_Management_System.java at main · abdullahaziz12/Java · GitHub

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importjava.util.Scanner;
importjava.io.IOException;
classLibraryItem {
Stringname;
Stringtype;
intid;
publicvoidproduct(Stringname, intid,Stringtype) {
this.name = name;
this.id = id;
this.type=type;
 }
publicintgetfinedate() {
return3;
 }
publicdoublecalculatefine(intlatedays) {
returnlatedays * 5.9;
 }
publicvoidshow() {
System.out.println("\n----------------------------------------------");
System.out.println(" \n Reciept");
System.out.println("\n----------------------------------------------");
System.out.println("Type:" + this.type);
System.out.println("Title: " + this.name);
System.out.println("ID: " + this.id);
System.out.println("Borrowing Duration is "+getfinedate()+" Days");
 }
}
classBooksextendsLibraryItem {
@Override
publicintgetfinedate() {
return7;
 }
@Override
publicdoublecalculatefine(intlatedays) {
returnlatedays * 10.0;
 }
}
classJournalsextendsLibraryItem {
@Override
publicintgetfinedate() {
return3;
 }
@Override
publicdoublecalculatefine(intlatedays) {
returnlatedays * 15.0;
 }
}
classDvDextendsLibraryItem {
@Override
publicintgetfinedate() {
return8;
 }
@Override
publicdoublecalculatefine(intlatedays) {
returnlatedays * 20.0;
 }
}
classMagazinesextendsLibraryItem {
@Override
publicintgetfinedate() {
return2;
 }
@Override
publicdoublecalculatefine(intlatedays) {
returnlatedays * 30.0;
 }
}
publicclassLibrary_Management_System {
publicstaticvoidmain(String[] args) {
Scannersc = newScanner(System.in);
LibraryItembook = newBooks();
LibraryItemjournal = newJournals();
LibraryItemmagzine = newMagazines();
LibraryItemdvd = newDvD();
while (true) {
System.out.println("\n----------------------------------------------");
System.out.println(" \n Main Menu");
System.out.println("\n----------------------------------------------");
System.out.print("\n1. Books\n2. Journals\n3. Magazines\n4. DVD\n0. Exit\nEnter:");
try {
intoptions = sc.nextInt();
sc.nextLine();
if (options == 0) {
System.out.println("Thanks For Using");
break;
 }
switch (options) {
case1:
book.type="BOOK";
System.out.print("Enter Name of the Book:");
book.name = sc.nextLine();
System.out.print("Enter Book ID:");
book.id = sc.nextInt();
System.out.println("Enter number of LateDays:");
intlatedays = sc.nextInt();
doublefine=book.calculatefine(latedays);
book.show();
System.out.print("Fine for "+latedays+" days = "+fine);
System.out.println("\nPress any Key to Continue");
System.in.read();
break;
case2:
journal.type="JOURNAl";
System.out.print("Enter Name of the Journal:");
journal.name = sc.nextLine();
System.out.print("Enter Journal ID:");
journal.id = sc.nextInt();
System.out.print("Enter number of LateDays:");
intlateday = sc.nextInt();
doublefines=journal.calculatefine(lateday);
journal.show();
System.out.print("Fine for "+lateday+" days = "+fines);
System.out.println("\nPress any Key to Continue");
System.in.read();
break;
case3:
magzine.type="MAGZINE";
System.out.print("Enter Name of the Magzine:");
magzine.name = sc.nextLine();
System.out.println("Enter Magzine ID:");
magzine.id = sc.nextInt();
System.out.print("Enter number of LateDays:");
intmaglateday = sc.nextInt();
doublemagfines=magzine.calculatefine(maglateday);
magzine.show();
System.out.print("Fine for "+maglateday+" days = "+magfines);
System.out.println("\nPress any Key to Continue");
System.in.read();
break;
case4:
dvd.type="DVD";
System.out.print("Enter Name of the DVD:");
dvd.name = sc.nextLine();
System.out.print("Enter DVD ID:");
dvd.id = sc.nextInt();
System.out.print("Enter number of LateDays:");
intdvdlateday = sc.nextInt();
doubledvdfines=dvd.calculatefine(dvdlateday);
dvd.show();
System.out.print("Fine for "+dvdlateday+" days = "+dvdfines);
System.out.println("\nPress any Key to Continue");
System.in.read();
break;
default:
System.out.println("Invalid Option");
 }
 } catch (Exceptione) {
System.out.println("Invalid Input");
sc.nextLine();
 }
 }
sc.close();
 }
}