Thread: Please i need help in a simple coding

I need help with this...

1) I have a librarian class which he/she can add or remove books to the book lists


How to did a method so that a librarian can add books and also remove books from the books lists which is stored in the array ? and can i have the sample coding pls ? THX IN ADVANCED...

Originally Posted by ookhai

I need help with this...

1) I have a librarian class which he/she can add or remove books to the book lists


How to did a method so that a librarian can add books and also remove books from the books lists which is stored in the array ? and can i have the sample coding pls ? THX IN ADVANCED...

If I understand correctly, you have a class "librarian" who should, by method, be able to add or remove books from a list?

If so, you could have something like this:

[Java] import java.util.Vector; public class Librarian { private Vector <Book> l - Pastebin.com

For ease of implementation, I have chosen a Vector instead of Array, since the array is immutable in size. You could replace Vector by ArrayList.

thx ! blueygh2 ....i think u almost get my mean...this is how my code

This is my book class : //book clas public class Books { // data members private String booksN - Pastebin.com

This is my test program : import java.util.Scanner; public class testLibrary { public static void - Pastebin.com


can pls help me to link the librarian clas which can add book or remove book ? SRY FOR THE LATE REPLY IM BUSYING TO CODE coz im beginner....

This is my book class :



public class Books {

// data members
private String booksName;
private String booksAuthor;
private String booksEdition;
private int rackNo;

// constructor
public Books(String booksName, String booksAuthor, String booksEdition, int rackNo) {
this.booksName = booksName;
this.booksAuthor = booksAuthor;
this.booksEdition = booksEdition;
this.rackNo = rackNo;
}
// toString method
public String toString() {
return String.format("\t%-10s %-10s %-10s \t\t%d", booksName, booksAuthor, booksEdition, rackNo);
}


}

i dun have any problem with the code...which means that the i can show out the books in the test program successfully...........now i need a librarian class which he/she can ADD books to the book list and also REMOVE books from the book list, but i dont know how to did the methods in the librarian class....could u help me ? if can with sample coding pls...

 
public class Books {
 
    // data members
	private String booksName;
	private String booksAuthor;
    private String booksEdition;
    private int rackNo;
 
 	// constructor
	public Books(String booksName, String booksAuthor, String booksEdition, int rackNo) {
		this.booksName = booksName;
		this.booksAuthor = booksAuthor;
		this.booksEdition = booksEdition;
		this.rackNo = rackNo;
	}
	// toString method
	public String toString() {
		return String.format("\t%-10s %-10s %-10s \t\t%d", booksName, booksAuthor, booksEdition, rackNo);
	}
 
 
}

and my test program

 
    import java.util.Scanner;
 
public class testLibrary {
 
	public static void main(String[] args) {
  	Books[] booksArr =     {new Books("Harry Potter", "\tJ.K ROLLING", "\t\t1st",   1),
  							new Books("Hello Kitty",  "\tJ.K Kitting", "\t\t2nd",   2),
  							new Books("Harry Kitter", "\tJ.K CASDCDC", "\t\t3rd",   3),
  							new Books("Harry Popper", "\tJ.K CDDCSWV", "\t\t4th",   4),
  							new Books("Happy Monter", "\tJ.K UJYUGNH", "\t\t5th",   5),
  							new Books("Marry kiefer", "\tJ.K CVFBVFF", "\t\t6th",   6)};
 
  	System.out.println("\nBooks Lists:					                                         	");
  	System.out.println("============================================================================");						
  	System.out.println("No.\tBooks name \t\tBooks author \tBooks edition \tRack number              ");
  	System.out.println("============================================================================");	
  		for (int j = 0; j < booksArr.length; ++j) {
  			System.out.println((j+1) + ". " + booksArr[j].toString());
  		}
 
 
 
 
 
}
}

As stated in my practical paper question....."Librarian can add books to the library collection or remove them".......so now my library collection(books list) already done.....left the librarian class with add / remove books method rite? how to did that ?

ok lah thx you.....im trying hard now..

it was good