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What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
...ical sequences. (same seed => same sequence)
The second one is not thread safe. Multiple threads can get identical RNGs when initializing at the same time. Additionally, seeds of subsequent initializations tend to be correlated. Depending on the actual timer resolution of the system, the seed se...
When to use static vs instantiated classes
PHP is my first programming language. I can't quite wrap my head around when to use static classes vs instantiated objects.
...
How do I split a string on a delimiter in Bash?
...ignment to IFS only takes place to that single command's environment (to read ). It then parses the input according to the IFS variable value into an array, which we can then iterate over.
IFS=';' read -ra ADDR <<< "$IN"
for i in "${ADDR[@]}"; do
# process "$i"
done
It will parse one...
Why are joins bad when considering scalability?
Why are joins bad or 'slow'. I know i heard this more then once. I found this quote
16 Answers
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I want to execute shell commands from Maven's pom.xml
...
Keppil
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answered Aug 16 '10 at 14:08
CurtisCurtis
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Why use JUnit for testing?
..., poring over millions of log lines across dozens of files and machines, reading generated and delivered emails, checking text messages, checking the path of a robot, filling a bottle of soda, aggregating data from a hundred web services, checking the audit trail of a financial transaction... you g...
Conveniently Declaring Compile-Time Strings in C++
...he process is very cumbersome, as the string needs to be declared as a variadic sequence of characters, e.g.
15 Answers
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How to search file text for a pattern and replace it with a given value
...ach is a naive illustration of Ruby's capabilities, and not a production-grade solution for replacing strings in files. It's prone to various failure scenarios, such as data loss in case of a crash, interrupt, or disk being full. This code is not fit for anything beyond a quick one-off script where ...
How to implement a ViewPager with different Fragments / Layouts
...v4.app.Fragment
MainActivity.java (Initializes the Viewpager and has the adapter for it as an inner class). Again have a look at the imports. I am using the android.support.v4 package.
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity...
Evaluating a mathematical expression in a string
...):
"""
expop :: '^'
multop :: '*' | '/'
addop :: '+' | '-'
integer :: ['+' | '-'] '0'..'9'+
atom :: PI | E | real | fn '(' expr ')' | '(' expr ')'
factor :: atom [ expop factor ]*
term :: factor [ multop factor ]*
ex...