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Why should I use the keyword “final” on a method parameter in Java?
... Use the keyword final when you want the compiler to prevent a
variable from being re-assigned to a different object.
Whether the variable is a static variable, member variable, local variable, or argument/parameter variable, the effect is entirely the same.
Example
Let’s see the effect in ...
In java how to get substring from a string till a character c?
...ing firstWord = filename.replaceAll("\\..*","")
This replaces everything from the first dot to the end with "" (ie it clears it, leaving you with what you want)
Here's a test:
System.out.println("abc.def.hij".replaceAll("\\..*", "");
Output:
abc
...
SQL (MySQL) vs NoSQL (CouchDB) [closed]
...
Here's a quote from a recent blog post from Dare Obasanjo.
SQL databases are like automatic
transmission and NoSQL databases are
like manual transmission. Once you
switch to NoSQL, you become
responsible for a lot of work that t...
Where is JAVA_HOME on macOS Mojave (10.14) to Lion (10.7)?
...ging the output of /usr/libexec/java_home.
Even after installing 1.7.0 u6 from Oracle on Lion and setting it as the default in the preferences, it still returned the apple 1.6 java home. The only fix that actually works for me is setting JAVA_HOME manually:
export JAVA_HOME=/Library/Java/JavaVirtu...
What is a 'thunk'?
...t lots of useful things efficiently
protocol translation -- when calling from code that uses one calling convention to code that uses a different calling convention, a thunk can be used to translate the arguments appropriately. This only works if the return conventions are compatible, but that is...
Load image from url
I have an image URL. I want to display an image from this URL in an ImageView but I am unable to do that.
16 Answers
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How does the C code that prints from 1 to 1000 without loops or conditional statements work?
I've found C code that prints from 1 to 1000 without loops or conditionals :
But I don't understand how it works. Can anyone go through the code and explain each line?
...
Commit history on remote repository
...emote branch in that repository, but only the logs that you have "fetched" from their repository to your personal "copy" of the remote repository.
Remember that your clone of the repository will update its state of any remote branches only by doing git fetch. You can't connect directly to the serve...
Tool for generating railroad diagram used on json.org [closed]
...enerator. It creates SVG syntax diagrams, also known as railroad diagrams, from context-free grammars specified in EBNF. You can copy the SVG code or take screen shots.
You have to type in the grammar and it'll make the diagram.
For example, to create the first railroad diagram you show, you would...
Configuring diff tool with .gitconfig
...
First link is broken. It seems the domain has changed from .com to .org. I'm able to browse jeetworks.org/software
– RBT
Feb 27 '17 at 3:08
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