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Android Studio Editor Font Sizing
...e 'Appearance Settings') check the CheckBox called "Override default fonts by (not recommended)" and then the "Size" choice will un-grey and you can choose a new size using either the PullDown or by typing a number. Double check that the number is reasonable (not too large).
Click [Apply] to see th...
How to define custom exception class in Java, the easiest way?
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@vulkanino: No. The default constructor is added by the compiler for every class that defines no constructor of its own. If you define an explicit constructor, you don't get the default even if the superclass has it, and if your class has no constructor, you get the default...
How to read the Stock CPU Usage data
...ically represents an I/O bound process. The problem is further exacerbated by some Linux devs using uninterruptible waits as an easy wait to avoid accommodating signals in their implementations. As a result, in Linux (and Android) we can see skewed high load average numbers that do not objectively r...
Immutability of Strings in Java
... +1 Here's an idea, immutable objects in java are like copy-by-value, you can have 2 references to a String, but you should consider them 2 separate Strings since it's immutable, and working with one of them won't affect the other
– Khaled.K
Mar ...
CSV in Python adding an extra carriage return, on Windows
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Python 3:
As described by YiboYang, set newline=''
with open('output.csv', 'w', newline='') as f:
writer = csv.writer(f)
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As noted in the comments by CoDEmanX, set newline='\n'
with open('output.csv', 'w', newline='\n', encoding='...
How to get child element by class name?
...hen filter the one whose className equals 4:
var doc = document.getElementById("test");
var notes = null;
for (var i = 0; i < doc.childNodes.length; i++) {
if (doc.childNodes[i].className == "4") {
notes = doc.childNodes[i];
break;
}
}
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Why can a function modify some arguments as perceived by the caller, but not others?
...unction and outside it refer to the same value, both see the modification. By contrast, the n inside the function and outside it refer to different values after n was reassigned inside the function.
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How do I remove the Devise route to sign up?
...'m using Devise in a Rails 3 app, but in this case, a user must be created by an existing user, who determines what permissions he/she will have.
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What is the difference between gsub and sub methods for Ruby Strings
...u that it is not obvious! Java calls these replace and replaceAll. But Ruby has its roots in Perl which uses the g modifier. It's just one of those things.
– Ray Toal
Jul 21 '11 at 0:27
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Error handling in Bash
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The best example of handling errors I have found on the web was written by William Shotts, Jr at http://www.linuxcommand.org .
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