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Default constructor vs. inline field initialization
...favored.
More elaborated examples to illustrate
Study case 1
I will start from a simple Car class that I will update to illustrate these points.
Car declare 4 fields and some constructors that have relation between them.
1.Giving a default value in field intializers for all fields is und...
Why are floating point numbers inaccurate?
...pt that binary only has two digits: 0 and 1. So the binary mantissa always starts with 1! When a float is stored, the 1 at the front of the binary mantissa is omitted to save space; we have to place it back at the front of our third element to get the true mantissa:
1.001001100110011001100110011...
Append lines to a file using a StreamWriter
...
what if the file has 10mb and I start writing from position 0, but only 10kb, how can I assure that the file only contains the 10kb data I've just written?
– JobaDiniz
Oct 11 '17 at 17:58
...
Algorithm to generate a crossword
...ips) and a board database (with pre-configured boards).
1) Search for all starting cells (the ones with an arrow), store their size and directions
2) Loop through all starting cells
2.1) Search a word
2.1.1) Check if it was not already used
2.1.2) Check if it fits
2.2) Add the word to the board
3) ...
Subqueries vs joins
...es) the tuples can't be pruned out of the result set until the outer query starts to run.
With out seeing the the query its hard to say what was so bad about the original, but my guess would be it was something that the optimizer just couldn't make much better. Running 'explain' will show you th...
How do I find where an exception was thrown in C++?
...gact;
sigact.sa_sigaction = crit_err_hdlr;
sigact.sa_flags = SA_RESTART | SA_SIGINFO;
if (sigaction(SIGABRT, &sigact, (struct sigaction *)NULL) != 0) {
std::cerr << "error setting handler for signal " << SIGABRT
<< " (" << strsigna...
Printing 1 to 1000 without loop or conditionals
... reason not to... When developers stop thinking about these (or never even start), they will, sooner or later, run into a problem where this matters, only they didn't even know there's spots where it might matter.
– sbi
Jan 30 '11 at 23:43
...
I can not find my.cnf on my windows computer [duplicate]
...nfig file and add an entry like this:
[mysqld]
skip-grant-tables
Then restart the MySQL Service and you can log in and do what you need to do. Of course you want to disable that entry in the config file as soon as possible!
See also http://dev.mysql.com/doc/refman/5.7/en/resetting-permissions.h...
Standard Android menu icons, for example refresh [closed]
...just letting the OP know they should have been using local copies from the start, rather than by reference.
– DMags
Apr 7 '11 at 14:54
2
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C# Stream流使用总结 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...务器：
TcpListener lis=new TcpListener(5000); //服务器监听
lis.Start();//启动
Socket sock=lis.AcceptSocket();//阻塞，直到有客户端连接
NetworkStream networkStream = new NetworkStream(sock);//得到Socket中的流
if (netStream.DataAvailable) //如果客户端发送了...