I am new to Oracle, and am trying to run a simple example code with Java, but am getting this error when executing the code.. I am able to start up the listener via CMD and am also able to run SQL Plus. Can anyone give me a hand and tell me what I might … Read more
I have created an MS Access database and assigned a DSN to it. I want to access it through my Java application. This is what I am doing: I am getting the exception at the first line of try block. That is class.forname(“..”);. Why am I having this Exception?
What does this mean? My code:
Nope. You could have a function to make it more concise each place you use it, but in the end, the work done would be the same (plus the overhead of the function call, until/unless HotSpot moved it inline — to help it with that, make the function static final).
So I have a jar file with one .class file on it. I just need to change some words in the file. What program should I use? I want this to work for my phone.
Usually hashes wouldn’t do sums, otherwise stop and pots will have the same hash. and you wouldn’t limit it to the first n characters because otherwise house and houses would have the same hash. Generally hashs take values and multiply it by a prime number (makes it more likely to generate unique hashes) So you … Read more
You probably want to have a list of supported encodings. For each file, try each encoding in turn, maybe starting with UTF-8. Every time you catch the MalformedInputException, try the next encoding.
I’ve spent maybe the last two hours browsing and reading up on these methods and the Graphics class, and maybe I’m stupid, haha, but I’m just not understanding them. What are they for? I understand that they’re supposed redraw or update components on the screen, but I have never understood why this is required (I’m … Read more
You can’t have statements in the class body (z=x*y;). You have (at least) two options: int z = x * y; use initializer block{ z = x * y; } These are virtually the same. I’d prefer the first option (cleaner) See here
Take a look at LinkedHashSet class From Java doc: Hash table and linked list implementation of the Set interface, with predictable iteration order. This implementation differs from HashSet in that it maintains a doubly-linked list running through all of its entries. This linked list defines the iteration ordering, which is the order in which elements were inserted into the … Read more