如何修复我的类中的编译错误 [英] How to fix the compilation errors in my class

问题描述

我的图书馆需要更正，在第62,63,64,65行我写了eclipse编辑器的错误评论....类库的主要方法一定不能修改......



图书馆课程的输出应该是这样的：



图书馆时间：

图书馆每天上午9点至下午5点开放。

图书馆地址：

10 Main St.

228 Liberty St.

借用指环王：

你成功借用了指环王

对不起，这本书已经借来了。

对不起，这本书不在我们的目录中。

第一个图书馆的书籍：

达芬奇密码

Le Petit Prince

两个城市的故事

第二个图书馆可用书籍：

目录中没有书籍

返回指环王：

您成功退回了指环王

第一个图书馆提供的图书：

达芬奇密码

Le Petit Prince

两个城市的故事

指环王



图书馆课程如下：

Hi , my Library calss need to be corrected , In line 62, 63, 64, 65 I wrote the error comments from eclipse editor .... The main method of class Library must not modify ...

The output of Library class should be like this :

Library hours:
Libraries are open daily from 9am to 5pm.
Library addresses:
10 Main St.
228 Liberty St.
Borrowing The Lord of the Rings:
You successfully borrowed The Lord of the Rings
Sorry, this book is already borrowed.
Sorry, this book is not in our catalog.
Books available in the first library:
The Da Vinci Code
Le Petit Prince
A Tale of Two Cities
Books available in the second library:
No book in catalog
Returning The Lord of the Rings:
You successfully returned The Lord of the Rings
Books available in the first library:
The Da Vinci Code
Le Petit Prince
A Tale of Two Cities
The Lord of the Rings

The Library class is as below :

import java.util.ArrayList;

public class Library {
    // Add the missing implementation to this class
	
	ArrayList <string> list = new ArrayList<string>();
	String adress;
	
	public Library(String t){
		this.adress=t;

	}
	
	public void Book(){
		
	}
	public void addBook(String Book){
		list.add(Book);
    }
	
	public static void printOpeningHours(){
		System.out.println("Libraries are open daily from 9am to 5pm.");

	}
	public void printAddress(){
		System.out.println(adress);

	}
	public void borrowBook(String k){
		for (int i=list.size()-1; i>=0; i--){
		if (list.get(i).equals(k)){
		System.out.println("You successfully borrowed The Lord of the Rings");
		list.remove(i);
		}else{
		System.out.println("Sorry, this book is already borrowed.");
		}
		
	}
	}
	public void printAvailableBooks(){
		System.out.println(list);

	}
	public String returnBook(String r){
		for (String b : list){
			if (b.equals(r)){
				return b;
			}
		}
		System.out.println("The Lord of the Ring");
		return r;
		
	}

	
    public static void main(String[] args) {
        // Create two libraries
    	 Library firstLibrary = new Library("10 Main St.");
    	 Library secondLibrary = new Library("228 Liberty St."); 

        // Add four books to the first library
line 62        firstLibrary.addBook(new Book("The Da Vinci Code")); // ***** - The method addBook(String) in the type Library is not applicable for the arguments (Book)
line 63       firstLibrary.addBook(new Book("Le Petit Prince")); // ***** The method addBook(String) in the type Library is not applicable for the arguments (Book)
line 64       firstLibrary.addBook(new Book("A Tale of Two Cities"));// ***** The method addBook(String) in the type Library is not applicable for the arguments (Book)
line 65       firstLibrary.addBook(new Book("The Lord of the Rings"));// ***** The method addBook(String) in the type Library is not applicable for the arguments (Book)

        // Print opening hours and the addresses
        System.out.println("Library hours:");
        printOpeningHours();
        System.out.println();

        System.out.println("Library addresses:");
        firstLibrary.printAddress();
        secondLibrary.printAddress();
        System.out.println();

        // Try to borrow The Lords of the Rings from both libraries
        System.out.println("Borrowing The Lord of the Rings:");
        firstLibrary.borrowBook("The Lord of the Rings");
        firstLibrary.borrowBook("The Lord of the Rings");
        secondLibrary.borrowBook("The Lord of the Rings");
        System.out.println();

        // Print the titles of all available books from both libraries
        System.out.println("Books available in the first library:");
        firstLibrary.printAvailableBooks();
        System.out.println();
        System.out.println("Books available in the second library:");
        secondLibrary.printAvailableBooks();
        System.out.println();

        // Return The Lords of the Rings to the first library
        System.out.println("Returning The Lord of the Rings:");
        firstLibrary.returnBook("The Lord of the Rings");
        System.out.println();

        // Print the titles of available from the first library
        System.out.println("Books available in the first library:");
        firstLibrary.printAvailableBooks();
    }
}

您是否有任何想法更正代码获得所需的输出？

你认为我在addBook（）方法中的代码是否正确？

谢谢

Do you have any idea to correct the code to get the desired output ?
Do you think that my code in addBook() method is correct?
thanks

推荐答案

这很简单：你的方法 addBook 接受 String 参数，但是你试图传递参数类型预订。这就是全部。



如何解决？不以错误的方式编写调用，或者使用错误的参数编写方法定义。你选择。

-SA

This is simple: your method addBook accepts String argument, but you are trying to pass the argument of the type Book. That's all.

How to fix? By not writing a call in a wrong way, or a method definition with wrong arguments. You choose.

—SA

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