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Restore file from old commit in git
...you want.
git checkout b6b94f2c19c456336d60b9409fb1e373036d3d71 -- myfile.java
Pass the commit ID AND the file name you want to restore. Make sure you have a space before and after the double hyphen.
There are many other ways to do it but this is the simplest one I can remember.
NOTE: If you are ...
ConnectionTimeout versus SocketTimeout
...
Not the answer you're looking for? Browse other questions tagged java android tcp httpconnection or ask your own question.
SHA512 vs. Blowfish and Bcrypt [closed]
...SHA-256/SHA-512 based crypt implementation.
We ported these algorithms to Java, and you can find a freely licensed version of them at ftp://ftp.arlut.utexas.edu/java_hashes/.
Note that most modern (L)Unices support Drepper's algorithm in their /etc/shadow files.
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Warning on “diff.renamelimit variable” when doing git push
...t might include changes to the content of the file (e.g. renaming/moving a Java Class).
This distinction is important because the algorithm for detecting exact renames is linear and will always be executed while the algorithm for inexact rename detection is quadratic ( O(n^2) ) and git does not at...
Find a pair of elements from an array whose sum equals a given number
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Implementation in Java : Using codaddict's algorithm (Maybe slightly different)
import java.util.HashMap;
public class ArrayPairSum {
public static void main(String[] args) {
int []a = {2,45,7,3,5,1,8,9};
printSumPairs(a,1...
How to determine a Python variable's type?
...See the examples below, but there's no "unsigned" type in Python just like Java.
Positive integer:
>>> v = 10
>>> type(v)
<type 'int'>
Large positive integer:
>>> v = 100000000000000
>>> type(v)
<type 'long'>
Negative integer:
>>> v = ...
Android - Set fragment id
...nt before it has been tagged?
My solutions so far all rely on the oldest (Java) trick in the world: create a minimalistic template fragment which takes an id in one of it's constructors and provides a getFragmentId() method which returns that id. I then let those fragments that need early identific...
Regular Expressions: Is there an AND operator?
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Use a non-consuming regular expression.
The typical (i.e. Perl/Java) notation is:
(?=expr)
This means "match expr but after that continue matching at the original match-point."
You can do as many of these as you want, and this will be an "and." Example:
(?=match this expression)(?...
What is “runtime”?
... is called the translation environment in the C standard.
Examples:
the Java runtime consists of the virtual machine and the standard library
a common C runtime consists of the loader (which is part of the operating system) and the runtime library, which implements the parts of the C language whi...
Difference between static class and singleton pattern?
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What's a static class? At least in Java, there's no such thing.
– Henrique Ordine
Aug 25 '12 at 9:00
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