无法弄清楚为什么这个花括号发出错误

Question

public String checkIn(Book b) {
  for (int i = 0; i < books.length; i++) {
   if (b.equals(books[i])) {
    if (checkedOut[i] > 0) {
     checkedOut[i]--;
     return "Checked in!";
    }
    else {
     return "All of our copies are already checked in.";
    }

   }
   else {
   return "Book not found.";
   }
  }

 }
 }   

The last curly brace is where I get the error. What's odd is that it recommends i remove it yet it still gives out the error.

Any ideas?

Answer 1

Few Mistakes.

1.) One curly brace is extra in the last.

2.) Also add return statement at the end of function.

Answer 2

You have one too many braces. Remove the last one. I would recommend formatting your code, as it will make it easier to read and fix problems like these in the future.

public String checkIn(Book b){
    for(int i = 0; i < books.length; i++){
        if(b.equals(books[i])){
            if(checkedOut[i] > 0){
                checkedOut[i]--;
                return "Checked in!";
            }else{
                return "All of our copies are already checked in.";
            }

        }else{
            return "Book not found.";
        }
    }
    return "";
}

If you are not using an IDE such as Netbeans or Eclipse , I would recommend using one as they will help with your errors.

Answer 3

Check with the below code

public String checkIn(Book b) 
{
  for (int i = 0; i < books.length; i++) 
  {
   if (b.equals(books[i])) 
   {
        if (checkedOut[i] > 0) 
        {
         checkedOut[i]--;
         return "Checked in!";
        }
        else 
        {
         return "All of our copies are already checked in.";
        }

   }
   else 
   {
        return "Book not found.";
   }
  }

 }

Answer 4

Your Code

public String checkIn(Book b)
{
   for (int i = 0; i < books.length; i++)
   {
      if (b.equals(books[i])) 
      {
          if (checkedOut[i] > 0)
          {
             checkedOut[i]--;
             return "Checked in!";
          }
         else 
         {
            return "All of our copies are already checked in.";
         }

     }
     else 
     {
         return "Book not found.";
     }
  }

 return "something";
}