I’m working on making a URL shortener for my site, and my current plan (I’m open to suggestions) is to use a node ID to generate the shortened URL. So, in theory, node 26 might be short.com/z, node 1 might be short.com/a, node 52 might be short.com/Z, and node 104 might be short.com/ZZ. When a … Read more
In C, int, char, long, etc. are all integers. They typically have different memory sizes and thus different ranges as in INT_MIN to INT_MAX. char and arrays of char are often used to store characters and strings. Integers are stored in many types: int being the most popular for a balance of speed, size and … Read more
Why this is not possible: Because String and Integer are not in the same Object hierarchy. The casting which you are trying, works only if they are in the same hierarchy, e.g. In this case, (A) objB or (Object) objB or (Object) objA will work. Hence as others have mentioned already, to convert an integer to string use: String.valueOf(integer), or Integer.toString(integer) for primitive, … Read more
What you are looking for is ‘type casting’. typecasting (putting the type you know you want in brackets) tells the compiler you know what you are doing and are cool with it. The old way that is inherited from C is as follows. If you had only tried to write You would have got a warning that … Read more
defines a primitive int. defines an array that has space to hold 1 int. They are two very different things. The primitive has no methods/properites on it, but an array has properties on it (length), and methods (specifically its on clone method, and all the methods of Object). Arrays are a bit of a weird … Read more
defines a primitive int. defines an array that has space to hold 1 int. They are two very different things. The primitive has no methods/properites on it, but an array has properties on it (length), and methods (specifically its on clone method, and all the methods of Object). Arrays are a bit of a weird … Read more
If you want the length of an integer as in the number of digits in the integer, you can always convert it to string like str(133) and find its length like len(str(123)).
It’s not obvious what you’re trying to accomplish here, but I’ll assume you’re trying to do some pointer arithmetic with x, and would like x to be an integer for this arithmetic but a void pointer on return. Without getting into why this does or doesn’t make sense, you can eliminate the warning by explicitly … Read more
Try: 0 – Left-pads the number with zeroes (0) instead of spaces, where padding is specified. 4 (width) – Minimum number of characters to be printed. If the value to be printed is shorter than this number, the result is right justified within this width by padding on the left with the pad character. By default this … Read more
Primitive types do not have methods, as they are not objects in Java. You should use the matching class: