大约有 43,000 项符合查询结果(耗时:0.0794秒) [XML]
Write a program that will surely go into deadlock [closed]
...Here's an example in C#. Note that the program appears to contain no locks and no shared data. It has only a single local variable and three statements, and yet it deadlocks with 100% certainty. One would be hard-pressed to come up with a simpler program that deadlocks with certainty.
Exercise to t...
isset() and empty() - what to use
...er something is set or not use isset.
Empty checks if the variable is set and if it is it checks it for null, "", 0, etc
Isset just checks if is it set, it could be anything not null
With empty, the following things are considered empty:
"" (an empty string)
0 (0 as an integer)
0.0 (0 as a floa...
How to gracefully handle the SIGKILL signal in Java
How do you handle clean up when the program receives a kill signal?
5 Answers
5
...
WWW or not WWW, what to choose as primary site name? [closed]
From technical perspective the only issue is traffic and incoming links (one of them should redirect to another).
14 Answe...
Python “SyntaxError: Non-ASCII character '\xe2' in file”
I am writing some python code and I am receiving the error message as in the title, from searching this has to do with the character set.
...
What is the exact difference between currentTarget property and target property in javascript
Can anyone please tell me the exact difference between currentTarget and target property in Javascript events with example and which property is used in which scenario?
...
Android Facebook integration with invalid key hash
... is wrong. You may get the hash key using two steps.
One is through a command prompt. Another one is through coding. The hash key through a command prompt is working on the first time only. I don't know the reason. I have also got the same problem. So I tried it through programmatically.
Follow th...
delete_all vs destroy_all?
...ave a user whose user ID is across many tables. I want to delete this user and every record that has his ID in all tables.
...
httpd: Could not reliably determine the server's fully qualified domain name, using 127.0.0.1 for Se
I tried to restart my Apache server on CentOS 5.0 and got this message:
11 Answers
11
...
Call an activity method from a fragment
...n my activity from a fragment. I want the fragment to give the method data and to get the data when the method return. I want to achieve similar to call on a static method, but without the use of static because it create problems in the activity.
...
