Convert bytes to a string
You need to decode the bytes object to produce a string:
What is the equivalent of the C++ Pair in Java?
In a thread on comp.lang.java.help, Hunter Gratzner gives some arguments against the presence of a Pair construct in Java. The main argument is that a class Pair doesn’t convey any semantics about the relationship between the two values (how do you know what “first” and “second” mean ?). A better practice is to write a very simple class, like the one … Read more
Is there a “not equal” operator in Python?
Use !=. See comparison operators. For comparing object identities, you can use the keyword is and its negation is not. e.g.
iOS: Random black screen when loading the app
After trying many things I just ended up deleting the view controller in the storyboard and recreating it from scratch and the problem disappeared. I’m not sure what was the issue, maybe some bug in Xcode…
Unable to find valid certification path to requested target – error even after cert imported
Unfortunately – it could be many things – and lots of app servers and other java ‘wrappers’ are prone to play with properties and their ‘own’ take on keychains and what not. So it may be looking at something totally different. Short of truss-ing – I’d try: to see if that helps. Instead of ‘all’ … Read more
What and where are the stack and heap?
The stack is the memory set aside as scratch space for a thread of execution. When a function is called, a block is reserved on the top of the stack for local variables and some bookkeeping data. When that function returns, the block becomes unused and can be used the next time a function is … Read more
What exactly is a VBO in OpenGL?
I think you are mixing up lots of different things and have several confusions, so I’m try to work through most of them in the order you brought them up: when we declare a series of vertices, let’s say 3 vertices that form a triangle primitive, we basically store those nowhere, they’re simply declared in … Read more
What is the JavaScript version of sleep()?
2017 — 2021 update Since 2009 when this question was asked, JavaScript has evolved significantly. All other answers are now obsolete or overly complicated. Here is the current best practice: Run code snippet This is it. await sleep(<duration>). Or as a one-liner: Note that, await can only be executed in functions prefixed with the async keyword, or at the … Read more
How does strtok() split the string into tokens in C?
strtok() divides the string into tokens. i.e. starting from any one of the delimiter to next one would be your one token. In your case, the starting token will be from “-” and end with next space ” “. Then next token will start from ” ” and end with “,”. Here you get “This” … Read more
Behaviour of increment and decrement operators in Python
++ is not an operator. It is two + operators. The + operator is the identity operator, which does nothing. (Clarification: the + and – unary operators only work on numbers, but I presume that you wouldn’t expect a hypothetical ++ operator to work on strings.) Parses as Which translates to You have to use the slightly longer += operator to do what you want to do: I suspect the ++ and — operators … Read more