Library Management system : Version 1 java

 

import javax.swing.plaf.PanelUI;
import java.util.Scanner;

class library {
    public int addBookSize=4;
    public int returnBookSize=3;
    public int issueBooksSize=3;
    Scanner sca = new Scanner(System.in);


    String [][] availableBook;

    {
        availableBook = new String[][]{{"m2", "oop", "english","php","","","","","",""}, {"mic", "dsa", "m1","","","","","","",""}};
    }
    public int availableBookLength = availableBook.length;//2
    public int returnBookLength = availableBook[0].length;//10
    public int addBookLength = availableBook[1].length;//10


    public void showBook(){
        System.out.print("ALL BOOKS : ");
        for (int i=0;i<availableBookLength;i++){
            for (int j = 0; j < 10; j++) {
                System.out.print(" "+availableBook[i][j]);
            }
        }
        System.out.println(" ");
    }
    public void showRetBook(){
        System.out.print("RETURNED BOOKS : ");
        for (int i = 0; i < returnBookLength; i++) {
            System.out.print(" "+availableBook[1][i]);
        }
        System.out.println("");
    }
    public void addBook(){
        if (addBookSize==addBookLength){
            System.out.println("SORRY NOT ENOUGH SPACE--");
        }
        else {
            for (int i = addBookSize; i < addBookLength; i++) {
                addBookSize++;
                System.out.println("ADD BOOK TO BLOCK : " + addBookSize);
                String seven = sca.next();
                availableBook[0][i] = seven;
//                libSize++;
                System.out.println(" DO YOU WANTS TO ADD MORE BOOKS YES=1 NO=2");
                int s = sca.nextInt();
                if (addBookSize==10){
                    System.out.println("SORRY NOT ENOUGH SPACE : "+addBookSize);
                }

                if (s == 1) {
                    continue;
                }
                else {
                    break;
                }
            }
        }
    }
    public void returnBook(){
        if (returnBookSize==returnBookLength){
            System.out.println("SORRY NOT ENOUGH SPACE");
        }
        else {
            for (int i = returnBookSize; i < returnBookLength; i++) {
                returnBookSize++;
                System.out.println("ADD RETURN_BOOK TO BLOCK : " + returnBookSize);
                String seven = sca.next();
                availableBook[1][i] = seven;
                System.out.println(" DO YOU WANTS  RETURN MORE BOOKS YES=1 NO=2");
                int s = sca.nextInt();
                if (returnBookSize==10){
                    System.out.println("SORRY NOT ENOUGH SPACE : "+returnBookSize);
                }
                if (s == 1) {
                    continue;
                } else {
                    break;
                }
            }
        }
    }
    String[] issueBooks = new String[]{"Mic", "OOP", "DSA", "", "", "", "", "", "", ""};
    int issueLength = issueBooks.length;
    public void showIssueBooks(){
        System.out.print("ISSUE BOOKS : ");
        for (int i = 0; i < issueLength; i++) {
            System.out.print(" " + issueBooks[i]);
        }
        System.out.println("");
    }
//    ADD ISSUE_BOOKS START
    public void addIssueBooks(){
        if (issueBooksSize==issueLength){
            System.out.println("SORRY NOT ENOUGH SPACE");
        }
        else {
            for (int i = issueBooksSize; i < issueLength; i++) {
                issueBooksSize++;
                System.out.println("ADD ISSUE_BOOK TO BLOCK : " + issueBooksSize);
                String seven = sca.next();
                issueBooks[i] = seven;
                System.out.print("BOOK ADDED TO ");
                showIssueBooks();
                System.out.println(" DO YOU WANTS TO ADD MORE ISSUE_BOOKS YES=1 NO=2");
                int s = sca.nextInt();
                if (issueBooksSize==10){
                    System.out.println("SORRY NOT ENOUGH SPACE : "+issueBooksSize);
                }
                if (s == 1) {
                    continue;
                } else {
                    break;
                }
            }
        }
    }

}
public class libr_practice {
    public static void main(String[] args) {
        // You have to implement a library using  java class library - done
        // Methods : addBook,
        // issueBook,
        // returnBook,
        // showAvailableBooks(),
        // propertied : Array to store the available Books,
        // Array to show available Books,
        Scanner sc = new Scanner(System.in);
        library ob = new library();
        while (true) {
            System.out.println("1=SHOW_BOOKS,2=ADD_BOOK,3=ISSUE_BOOK,4=ADD_ISSUE_BOOK,5=SHOW_RETURN_BOOK,6=RETURN_BOOK");
            int action = sc.nextInt();
            if (action == 1) {
//                ob.showBooks();
                ob.showBook();
            } else if (action == 2) {
//                ob.addBooks();
                ob.addBook();
            } else if (action == 3) {
                ob.showIssueBooks();
            } else if (action == 4) {
                    ob.addIssueBooks();
            } else if (action==5) {
                ob.showRetBook();
            } else if (action==6) {
                ob.returnBook();
            }
        }
    }
}