Add files via upload

library2 - Copy (2)/library2.iml

@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

library2 - Copy (2)/src/Book.java

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+import java.util.Scanner;
+
+public class Book {
+
+        public int isbn;
+        public String bookName;
+        public String authorName;
+        public String publishYear;
+        public int bookQty;
+        public int bookQtyCopy;
+
+        Scanner input = new Scanner(System.in);
+
+        public Book()
+        {
+            System.out.println("Enter Serial No of Book:");
+            this.isbn = input.nextInt();
+            input.nextLine();
+
+            System.out.println("Enter Book Name:");
+            this.bookName = input.nextLine();
+
+            System.out.println("Enter Author Name:");
+            this.authorName = input.nextLine();
+
+            System.out.println("Enter publish year:");
+            this.publishYear = input.nextLine();
+
+            System.out.println("Enter Quantity of Books:");
+            this.bookQty = input.nextInt();
+            bookQtyCopy = this.bookQty;
+        }
+}

library2 - Copy (2)/src/Librarian.java

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+import java.util.Scanner;
+
+public class Librarian {
+
+    String libName;
+    String libPass;
+    Scanner input = new Scanner(System.in);
+
+    public Librarian()
+    {
+        System.out.println("Enter librarian name:");
+
+        this.libName = input.nextLine();
+
+        System.out.println("Enter librarian password:");
+
+        this.libPass = input.nextLine();
+    }
+
+}

library2 - Copy (2)/src/Library.java

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+import java.util.Scanner;
+
+public class Library {
+
+    public int BOOKcapacity;
+    Book theBooks[] = new Book[BOOKcapacity];
+
+
+    public static int count;
+
+    Scanner input = new Scanner(System.in);
+
+    public void askingForBookCapacity(){
+
+        System.out.println("PLEASE ENTER THE CAPACITY OF YOUR LIBRARY FOR ADDING BOOKS");
+
+        BOOKcapacity = input.nextInt();
+    }
+
+
+    public int compareBookObjects(Book b1, Book b2){
+
+        if (b1.bookName.equalsIgnoreCase(b2.bookName)){
+
+            System.out.println("Book of this Name Already Exists.");
+
+            return 0;
+
+        }
+
+        if (b1.isbn == b2.isbn){
+
+            System.out.println("Book of this Serial No Already Exists.");
+
+            return 0;
+
+        }
+
+        return 1;
+
+    }
+
+
+    public void addBook(Book b) {
+
+        for (int i = 0; i < count; i++) {
+
+            if (this.compareBookObjects(b, this.theBooks[i]) == 0)
+
+                return;
+        }
+
+        if (count < BOOKcapacity){
+
+            theBooks[count] = b;
+
+            count++;
+        }
+
+        else{
+
+            System.out.println("No Space to Add More Books.");
+        }
+
+    }
+
+    public void searchByISBN(){
+
+        System.out.println("SEARCH BY SERIAL NUMBER");
+
+        int ISBN;
+
+        System.out.println("Enter ISBN of Book:");
+
+        ISBN = input.nextInt();
+
+        int flag = 0;
+
+        System.out.println("ISBN - Name - Author - Available Qty - Total Qty - publish year");
+
+        for (int i = 0; i < count; i++){
+
+            if (ISBN == theBooks[i].isbn){
+
+                System.out.println(theBooks[i].isbn + "\t\t" + theBooks[i].bookName + "\t\t" + theBooks[i].authorName + "\t\t" + theBooks[i].bookQtyCopy + "\t\t" + theBooks[i].bookQty + "\t\t" + theBooks[i].publishYear);
+
+                flag++;
+
+            }
+        }
+
+        if (flag == 0){
+
+            System.out.println("No Book for ISBN " + ISBN + " Found.");
+        }
+
+    }
+
+
+    public void searchByAuthorName(){
+
+        System.out.println("SEARCH BY AUTHOR'S NAME");
+
+        System.out.println("Enter Author Name:");
+
+        String authorName = input.nextLine();
+
+        int flag = 0;
+
+        System.out.println("ISBN - Name - Author - Available Qty - Total Qty - publish year");
+
+        for (int i = 0; i < count; i++) {
+
+            if (authorName.equalsIgnoreCase(theBooks[i].authorName)){
+
+                System.out.println(theBooks[i].isbn + "\t\t" + theBooks[i].bookName + "\t\t" + theBooks[i].authorName + "\t\t" + theBooks[i].bookQtyCopy + "\t\t" + theBooks[i].bookQty + "\t\t" + theBooks[i].publishYear);
+
+                flag++;
+
+            }
+
+        }
+
+
+        if (flag == 0){
+
+            System.out.println("No Books of " + authorName + " Found.");
+        }
+
+    }
+
+    public void showAllBooks(){
+
+        System.out.println("SHOWING ALL BOOKS");
+
+        System.out.println("ISBN - Name - Author - Available Qty - Total Qty - publish year");
+
+        for (int i = 0; i < count; i++) {
+
+            System.out.println(theBooks[i].isbn + "\t\t" + theBooks[i].bookName + "\t\t" + theBooks[i].authorName + "\t\t" + theBooks[i].bookQtyCopy + "\t\t" + theBooks[i].bookQty + "\t\t" + theBooks[i].publishYear);
+
+        }
+
+    }
+
+
+    public void changeBookQty(){
+
+        System.out.println("CHANGE QUANTITY OF A BOOK\n");
+
+        System.out.println("Enter ISBN of Book");
+
+        int ISBN = input.nextInt();
+
+        for (int i = 0; i < count; i++){
+
+            if (ISBN == theBooks[i].isbn){
+
+                System.out.println("Enter Number of Books to be Added or Removed \n ATTENTION: if you want to increase just type a positive number like \n2 and if you want to decrease write a negative number like -2 ");
+
+                int addingQty = input.nextInt();
+
+                theBooks[i].bookQty += addingQty;
+
+                theBooks[i].bookQtyCopy += addingQty;
+
+                return;
+            }
+        }
+    }
+
+    public int doesBookExists(int ISBN){
+
+        for (int i = 0; i < count; i++){
+
+            if (ISBN == theBooks[i].isbn){
+
+                if (theBooks[i].bookQtyCopy > 0){
+
+                    System.out.println("Book exists.");
+
+                    return i;
+                }
+
+                System.out.println("Book does not exist");
+
+                return -1;
+            }
+        }
+
+        System.out.println("No Book of ISBN " + " Available in Library.");
+
+        return -1;
+    }
+
+
+    public Book removeBook(){
+
+        System.out.println("Enter ISBN of Book to be Checked Out.");
+
+        int ISBN = input.nextInt();
+
+        int bookIndex = doesBookExists(ISBN);
+
+        if (bookIndex != -1){
+
+            theBooks[bookIndex].bookQtyCopy--;
+
+            return theBooks[bookIndex];
+
+        }
+
+        return null;
+
+    }
+
+
+    public void returnBook(Book b){
+
+        for (int i = 0; i < count; i++){
+
+            if (b.equals(theBooks[i])){
+
+                theBooks[i].bookQtyCopy++;
+
+            }
+        }
+    }
+}