Java 클래스를 사용하여 일부 GUI 기능을 추가하여 책 제목 또는 비용을 반환 할 수 있습니다. 작업 수신기를 구현해야하지만 어디에서 시작 해야할지에 대한 손실, 모든 포인터가 많이 감사하게 될 것입니다. 아래 코드 -Java 클래스에 GUI 기능 추가
import java.text.*;
public class Book
{
public static void main (String[] args)
{
}
// Instance variables
private String title, author, publisher;
private int year;
private double cost;
/**
* Book constructor that initialises the instance variables based on user input.
*
* @param title The title of the book
* @param author The author of the book
* @param year The year the book was published
* @param publisher The name of the publisher of the book
* @param cost The cost of the book
*/
public Book(String title, String author, int year, String publisher, double cost)
{
this.title = title;
this.author = author;
this.year = year;
this.publisher = publisher;
this.cost = cost;
}
/**
* Accessor for the title of the book.
* @return the title of the book.
*/
public String getTitle()
{
return title;
}
/**
* Accessor for the author of the book.
* @return the author of the book.
*/
public String getAuthor()
{
return author;
}
/**
* Accessor for the year the book was published.
* @return the year the book was published.
*/
public int getYear()
{
return year;
}
/**
* Accessor for the publisher of the book.
* @return the publisher of the book.
*/
public String getPublisher()
{
return publisher;
}
/**
* Accessor for the cost of the book.
* @return the cost of the book.
*/
public double getCost()
{
return cost;
}
/**
* Mutator for updating the title of the book.
* @param title The new title of the book.
*/
public void setTitle(String title)
{
this.title = title;
}
/**
* Mutator for updating the author of the book.
* @param author The new author of the book.
*/
public void setAuthor(String author)
{
this.author = author;
}
/**
* Mutator for updating the year of the book.
* @param year The new year of the book.
*/
public void setYear(int year)
{
this.year = year;
}
/**
* Mutator for updating the publisher of the book.
* @param publisher The new publisher of the book.
*/
public void setPublisher(String publisher)
{
this.publisher = publisher;
}
/**
* Mutator for updating the cost of the book.
* @param cost The new cost of the book.
*/
public void setCost(double cost)
{
this.cost = cost;
}
/**
* The standard toString method that returns the details of the book
* @return the details of the book formatted as a String.
*/
public String toString()
{
return "The details of the book are: " + title +
", " + author + ", " + year + ", " + publisher + ", " + cost;
}
}
편집 : - 나는 내가 GUI ELEMENTS I을 처리 할 BOOKDISPLAY 같은라는 제 3 유형을 만들 필요가 부담
HI는 여기 책 저장소는 년대의 제 2 유형이야 저는 두 권의 책과 서적에 행동 강령을 추가해야한다고 생각합니다. 그리고 제 3 군은 그 표시에 대해 대처할 것입니다. 그러나 나는 잘못 시작하고 있습니다. 디스플레이 클래스가 책의 메서드와 '알림'에 어떻게 표시되는지 설명하고 책을 제공하면 도움이 될 것입니다. 고맙습니다. '호버 크래프트'질문에이 프로젝트에서 GUI와 리스너 파트를 시작한 가장 큰 문제는 무엇입니까?
import java.util.ArrayList;
public class BookShelf
{
//create an ArrayList of Book.
private ArrayList<Book> books;
public BookShelf()
{
books = new ArrayList<Book>();
}
/**
* This method adds a Book object to the ArrayList
*
* @param theBook The book object that will be added to the ArrayList
*
*/
public void addBook(Book theBook)
{
books.add(theBook);
}
/**
* This method returns the size of the ArrayList, that is, the number of books
* that have been added to the ArrayList
*
* @return The size of the ArrayList
*/
public int sizeOfBookshelf()
{
return books.size();
}
/**
* This method calculates the cost of the book shelf, that is, it totals the
* cost of all the books in the ArrayList and returns it.
*
* @return The cost of the book shelf
*/
public double costOfBookshelf(){
double total = 0;
for(Book book : books) {
total = total + book.getCost();
}
return total;
}
//create a method called highestPricePAid that will return the cost of the most expensive book in the ArrayList
/**
* This method finds the price of the most expensive book in the ArrayList and returns it.
*
* @return The cost of the most expensive book on the book shelf
*/
public double highestPricePaid(){
double highestPrice = 0;
for(Book book : books) {
if((highestPrice == 0) || (highestPrice < book.getCost())) {
highestPrice = book.getCost(); }
}
return highestPrice;
}
}
Gustav, 귀하의 계정을 통합 했으므로이 게시물과 답변에 대한 의견을 남길 수 있습니다. 고마워, @jnguy. –