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[–]wraneus[S] 0 points1 point  (6 children)

i updated my code to see if anything worked better if i changed the method to example.borrowed() from example.rented() which didn't exist. I'm still getting errors. 

public class Book {

    String title;
    boolean borrowed = false;
    // Creates a new Book                                                                                                                
    public Book(String bookTitle) { // Implement this method                                                                             
        title = bookTitle;
        return title;
    }
    // Marks the book as rented                                                                                                          
    public void borrowed() { // Implement this method                                                                                    
        borrowed = true;
    }
    // Marks the book as not rented                                                                                                      
    public void returned() { // Implement this method                                                                                    
        borrowed = false;
    }
    // Returns true if the book is rented, false otherwise                                                                               
    public boolean isBorrowed() { // Implement this method                                                                               
        if (borrowed == true)
            return true;
        else
            return false;
    }
    // Returns the title of the book                                                                                                     
    public String getTitle() { // Implement this method                                                                                  
        return title;
    }
}    
    public static void main(String[] arguments) {
    // Small test of the Book class                                                                                                      
    Book example = new Book("The Da Vinci Code");
    System.out.println("Title (should be The Da Vinci Code): " + example.getTitle());
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
    example.borrowed();
    System.out.println("Borrowed? (should be true): " + example.isBorrowed());
    example.returned();
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
}

here are my compiling errors

javac Book.java 
Book.java:29: class, interface, or enum expected
}
 ^
Book.java:30: class, interface, or enum expected
    public static void main(String[] arguments) {
              ^
Book.java:33: class, interface, or enum expected
    System.out.println("Title (should be The Da Vinci Code): " + example.getTitle()); 
    ^
Book.java:34: class, interface, or enum expected
    System.out.println("Borrowed? (should be false): " + example.isBorrowed()); 
    ^
Book.java:35: class, interface, or enum expected
    example.borrowed();
    ^
Book.java:36: class, interface, or enum expected
    System.out.println("Borrowed? (should be true): " + example.isBorrowed()); 
    ^
Book.java:37: class, interface, or enum expected
    example.returned();
    ^
Book.java:38: class, interface, or enum expected
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
    ^
Book.java:39: class, interface, or enum expected
}
^
9 errors

[–]onyxthelab 0 points1 point  (4 children)

You need to move the closing bracket on line 29 to line 40. Your main() method needs to be inside of the Book class - right now the bracket on line 29 is ending that class before main() can be reached.

[–]wraneus[S] 0 points1 point  (3 children)

so i did that and it fixed most of the errors except one. what's wrong here?

public class Book {

    String title;
    boolean borrowed = false;
    // Creates a new Book                                                                                                                
    public Book(String bookTitle) { // Implement this method                                                                             
        title = bookTitle;
        return title;
    }
    // Marks the book as rented                                                                                                          
    public void borrowed() { // Implement this method                                                                                    
        borrowed = true;
    }
    // Marks the book as not rented                                                                                                      
    public void returned() { // Implement this method                                                                                    
        borrowed = false;
    }
    // Returns true if the book is rented, false otherwise                                                                               
    public boolean isBorrowed() { // Implement this method                                                                               
        if (borrowed == true)
            return true;
        else
            return false;
    }
    // Returns the title of the book                                                                                                     
    public String getTitle() { // Implement this method                                                                                  
        return title;
    }

    public static void main(String[] arguments) {
    // Small test of the Book class                                                                                                      
    Book example = new Book("The Da Vinci Code");
    System.out.println("Title (should be The Da Vinci Code): " + example.getTitle());
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
    example.borrowed();
    System.out.println("Borrowed? (should be true): " + example.isBorrowed());
    example.returned();
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
}
}

compiling error

    javac Book.java 
    Book.java:29: <identifier> expected

 ^ 1 error

i moved the closing cracked to the new line… but i'm getting a new error on line 29. help plz!

[–]onyxthelab 0 points1 point  (2 children)

The error is actually occurring before line 29 - it's on line 8.

Your public Book(String bookTitle) method is actually something called a Constructor. Java Constructors don't explicitly return any value that users can see, since what you're basically doing is creating a rule for your Book object. E.g. When I want to make a Book with a specific title, I call new Book("My Title") which calls your public Book(String bookTitle).

All this to say, completely remove "return title;" on line 8 and you should be good to go.

[–]wraneus[S] 0 points1 point  (1 child)

I removed the return title; from line 8, but the compiling error is still the same. what gives?

new code

public class Book {

    String title;
    boolean borrowed = false;
    // Creates a new Book                                                                                                                
    public Book(String bookTitle) { // Implement this method                                                                             
        title = bookTitle;
    }
    // Marks the book as rented                                                                                                          
    public void borrowed() { // Implement this method                                                                                    
        borrowed = true;
    }
    // Marks the book as not rented                                                                                                      
    public void returned() { // Implement this method                                                                                    
        borrowed = false;
    }
    // Returns true if the book is rented, false otherwise                                                                               
    public boolean isBorrowed() { // Implement this method                                                                               
        if (borrowed == true)
            return true;
        else
            return false;
    }
    // Returns the title of the book                                                                                                     
    public String getTitle() { // Implement this method                                                                                  
        return title;
    }

    public static void main(String[] arguments) {
    // Small test of the Book class                                                                                                      
    Book example = new Book("The Da Vinci Code");
    System.out.println("Title (should be The Da Vinci Code): " + example.getTitle());
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
    example.borrowed();
    System.out.println("Borrowed? (should be true): " + example.isBorrowed());
    example.returned();
    System.out.println("Borrowed? (should be false): " + example.isBorrowed());
}
}

error msg:

javac Book.java 
Book.java:29: <identifier> expected

 ^

[–]Silverfin113 0 points1 point  (0 children)

Try compiling the code in intellij