taking information from one array into another
I have 2 arrays that store members and books in a library, i want to use a 3rd array to take information out of those arrays. E.g take one member and one book and put them in one "Loan" slot to represent a member borrowing a book.
Here is all my code
Any help would be much appreciated.
Thanks
Code Java:
import java.util.ArrayList;
/**
* Write a description of class Library here.
*
* @author (your name)
* @version (a version number or a date)
*/
public class Library
{
ArrayList<Membership> member;
ArrayList<Books> book;
ArrayList<Loans>loan;
private int nextMemberID;
private int nextBookId;
private int nextLoanId;
/**
* Constructor for objects of class Library
*/
public Library()
{
nextMemberID = 1;
nextBookId = 1;
nextLoanId = 1;
member = new ArrayList<Membership>();
book = new ArrayList<Books>();
loan = new ArrayList<Loans>();
}
/**
* Return the lot with the given number. Return null
* if a lot with this number does not exist.
* @param lotNumber The number of the lot to return.
*/
public void addnewMember( String first, String last, String telephone)
{
member.add(new Membership(nextMemberID,first,last,telephone));
nextMemberID++;
}
[SIZE="3"][B]public void addnewLoan( )
{
loans.add(new Loans();[/B][/SIZE]
}
public void listMembers()
{
for(Membership membership : member) {
System.out.println(membership.toString());
}
}
public void getMemberDetails(int ID)
{
for(Membership membership : member) {
if(membership.getID() == ID){
System.out.println (membership);
}
}
// if ID number does not exist then do nothing
}
public void getBookDetails(int bookid)
{
for(Books books : book) {
if(books.getBookid() == bookid){
System.out.println (books);
}
}
// if ID number does not exist then do nothing
}
/**
* Return the lot with the given number. Return null
* if a lot with this number does not exist.
* @param lotNumber The number of the lot to return.
*/
public Membership getMember(int ID)
{
for(Membership membership : member) {
if(membership.getID() == ID){
return membership;
} else if (membership.getID() > ID) {
System.out.println("Lot number: " + ID +
"does not exist.");
}
}
return null; //if there are no lots
}
/** * Remove the lot with the given lot number.
* @param number The number of the lot to be removed
* @return The Lot with the given number, or null if
* there is no such lot.
*/
public void removeMember(int ID) {
//First we find the lot with the given number
Membership membership = getMember(ID);
if (membership != null) {
//Then we can use the method remove with lot as argument
member.remove(membership);
}
}
/**
* Return the lot with the given number. Return null
* if a lot with this number does not exist.
* @param boolean fiction IS the book fiction true or false.
*/
public void addnewBook( String title, String author, boolean fiction)
{
book.add(new Books(nextBookId,title,author,fiction));
nextBookId++;
}
public void listBooks()
{
for(Books books : book) {
System.out.println(books.toString());
}
}
public Books getBookid(int bookid)
{
for(Books books : book) {
if(books.getBookid() == bookid){
return books;
} else if (books.getBookid() > bookid) {
System.out.println("Lot number: " + bookid +
"does not exist.");
}
}
return null; //if there are no lots
}
public void removeBook(int bookid) {
//First we find the lot with the given number
Books books = getBookid(bookid);
if (books != null) {
//Then we can use the method remove with lot as argument
book.remove(books);
}
}
public void searchForLastName(String lastname) {
int index = 0;
boolean found = false;
for(Membership membership : member) {
if(membership.getlastName().contains(lastname)) {
found = true; }
else {
index++; }
if(found) {
System.out.println (membership);
} else {
// if no matches are found then do nothing
}
}
}
public void searchForBookTitle(String booktitle) {
int index = 0;
boolean found = false;
for(Books books : book) {
if(books.gettitle().contains(booktitle)) {
found = true; }
else {
index++; }
if(found) {
System.out.println (books);
} else {
// if no matches are found then do nothing
}
}
}
}
Code Java:
public class Books
{
// instance variables - replace the example below with your own
private final int bookid;
private String title;
private String author;
private boolean fiction;
/**
* Constructor for objects of class Booklist
*/
public Books(int Id, String title, String author, boolean fiction)
{
this.bookid = Id;
this.title = title;
this.author = author;
this.fiction = fiction;
}
/**
* @return The lot's number.
*/
public int getBookid()
{
return bookid;
}
public String gettitle()
{
return title;
}
public String toString()
{
String details = bookid + ": <<<Book ID :Title " + title + " :Author " + author + " :Is the book fiction - True or False? "+ fiction;
return details;
}
}
Code Java:
public class Membership
{
private String firstName;
private String lastName;
private String telephoneNumber;
private int ID;
/**
* Constructor for objects of class Member
*/
public Membership(int ID, String first, String last, String telephone)
{
this.ID = ID;
this.firstName = first;
this.lastName = last;
this.telephoneNumber = telephone;
}
/**
* @return The lot's number.
*/
public int getID()
{
return ID;
}
public String getlastName()
{
return lastName;
}
public String toString()
{
String details = ID + ": <<<Membership ID :First Name " + firstName + " :Second Name " + lastName + " :Telephone Number " + telephoneNumber;
return details;
}
}
Re: taking information from one array into another
Do you mean something like a HashMap where you could have the member as the key and the book as the value or vice versa like this?
Code Java:
HashMap<Books,Membership> loans = new HashMap<Books,Membership>();
loans.put(member.get(0),book.get(0);
Or whichever members and books you want in there. Not sure if I've missed the point here.
