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Thread: Please i need help in a simple coding

  1. #1
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    Default 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...


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    Default Re: Please i need help in a simple coding

    What code have you written so far? Post your current code and any questions you have.

    What you are describing sounds like a big program with many parts.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Please i need help in a simple coding

    Quote Originally Posted by ookhai View Post
    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.

  4. #4
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    Default Re: Please i need help in a simple coding

    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....

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    Default Re: Please i need help in a simple coding

    Can you post the code here on the forum so everyone can see it?
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Please i need help in a simple coding

    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);
    }


    }

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    Default Re: Please i need help in a simple coding

    This is 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());
    }





    }
    }


    teacher say we are just beginner ...so we may just input a FEW fixed book lists which contains in library..
    Last edited by ookhai; July 1st, 2012 at 09:39 AM.

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    Default Re: Please i need help in a simple coding

    Do you have questions or problems with the code? Please post them.

    Please Edit your post and wrap your code with
    [code=java]
    <YOUR CODE HERE>
    [/code]
    to get highlighting and preserve formatting.
    If you don't understand my answer, don't ignore it, ask a question.

  9. #9
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    Default Re: Please i need help in a simple coding

    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());
      		}
     
     
     
     
     
    }
    }

  10. #10
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    Default Re: Please i need help in a simple coding

    What are the things the librarian class must do? Make a list of what you want it to do and then work on what methods the class will need to have to do for each item in the list.

    Where will the book objects be saved? The librarian class will need to be able to access that location to do its tasks.
    If you don't understand my answer, don't ignore it, ask a question.

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    Default Re: Please i need help in a simple coding

    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 ?

  12. #12
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    Default Re: Please i need help in a simple coding

    Take the items one at a time and write the code for it. Work on code to add a book.
    If you don't understand my answer, don't ignore it, ask a question.

  13. #13
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    Default Re: Please i need help in a simple coding

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

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    Default Re: Please i need help in a simple coding

    it was good

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