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Java synchronized method lock on object, or method?
..., so two thread accessing a different variable from this same object would block each other anyway.
If you want to synchronize only on one variable at a time, so two threads won't block each other while accessing different variables, you have synchronize on them separately in synchronized () block...
Grep not as a regular expression
I need to search for a PHP variable $someVar . However, Grep thinks that I am trying to run a regex and is complaining:
6 ...
How do I list all cron jobs for all users?
... d m w user command
09,39 * * * * root [ -d /var/lib/php5 ] && find /var/lib/php5/ -type f -cmin +$(/usr/lib/php5/maxlifetime) -print0 | xargs -r -0 rm
47 */8 * * * root rsync -axE --delete --ignore-errors / /mirror/ >/dev/null
17 1 * * * root ...
How and when to use ‘async’ and ‘await’
...sync() will return to its calling method, thus the main thread doesn't get blocked. When the longRunningTask is done then a thread from the ThreadPool (can be any thread) will return to MyMethodAsync() in its previous context and continue execution (in this case printing the result to the console).
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Which is more correct: … OR …
...ou put the <a> around the <h1> and the css display property is block (which it is by default) the entire block (the height of the <h1> and 100% of the width of the container the <h1> resides in) will be clickable.
Historically you could not put a block element inside of an i...
Code block in numbered list (Wiki syntax)
...kipedia's) wiki syntax, is there a way to have a numbered list with a code block in the middle?
7 Answers
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Vim: faster way to select blocks of text in visual mode
I have been using vim for quite some time and am aware that selecting blocks of text in visual mode is as simple as SHIFT + V and moving the arrow key up or down line-by-line until I reach the end of the block of text that I want selected.
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What does 'synchronized' mean?
...;
new TestThread("THREAD 3",theDemo);
}
}
Note: synchronized blocks the next thread's call to method test() as long as the previous thread's execution is not finished. Threads can access this method one at a time. Without synchronized all threads can access this method simultaneously.
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Align elements side by side
...ft;
}
html
<div class='parent'>
<div class='child inline-block-child'>A</div>
<div class='child inline-block-child'>B</div>
</div>
css
.inline-block-child {
display: inline-block;
}
Note: the space between these two child elements can be remove...
CSS fixed width in a span
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The float property generates a "block box" which does have a width.
– Stephen Caldwell
Nov 2 '08 at 23:23
85
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