大约有 24,000 项符合查询结果（耗时：0.0382秒） [XML]
The difference between the Runnable and Callable interfaces in Java
...
See explanation here.
The Callable interface is similar to
Runnable, in that both are designed
for classes whose instances are
potentially executed by another
thread. A Runnable, however, does not
return a result and ...
Iterate through a HashMap [duplicate]
What's the best way to iterate over the items in a HashMap ?
7 Answers
7
...
How to properly seed random number generator
...sequence. So of course if you're setting the seed to the time in a fast loop, you'll probably call it with the same seed many times.
In your case, as you're calling your randInt function until you have a different value, you're waiting for the time (as returned by Nano) to change.
As for all pseud...
undefined reference to `WinMain@16'
When I try to build a program using Eclipse CDT , I get the following:
6 Answers
6
...
Generate random numbers following a normal distribution in C/C++
...m a regular RNG.
The Box-Muller transform is commonly used. It correctly produces values with a normal distribution. The math is easy. You generate two (uniform) random numbers, and by applying an formula to them, you get two normally distributed random numbers. Return one, and save the other f...
In MySQL, can I copy one row to insert into the same table?
I just want to copy one row to insert into the same table (i.e., I want to duplicate an existing row in the table) but I want to do this without having to list all the columns after the "select", because this table has too many columns.
...
Why use a prime number in hashCode?
I was just wondering why is that primes are used in a class's hashCode() method? For example, when using Eclipse to generate my hashCode() method there is always the prime number 31 used:
...
JavaScript private methods
To make a JavaScript class with a public method I'd do something like:
30 Answers
30
...
Can I export a variable to the environment from a bash script without sourcing it?
Suppose that I have this script
7 Answers
7
...
How to deal with page breaks when printing a large HTML table
I have a project which requires printing an HTML table with many rows.
12 Answers
12
...