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What is a Java ClassLoader?
...ollowing simple class:
public class HelloApp {
public static void main(String argv[]) {
System.out.println("Aloha! Hello and Bye");
}
}
If you run this class specifying the -verbose:class command-line option, so that it prints what classes are being loaded, you will get an output that...
Virtual functions and performance - C++
...an instruction cache miss like a non-virtual function.
In many cases, two extra cache misses are not a concern, but in a tight loop on performance critical code it can dramatically reduce performance.
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Looking for a clear definition of what a “tokenizer”, “parser” and...
...hes extra context to the tokens -- this token is a number, that token is a string literal, this other token is an equality operator.
A parser takes the stream of tokens from the lexer and turns it into an abstract syntax tree representing the (usually) program represented by the original text.
Las...
How to check Oracle database for long running queries
...ions, nothing will show up.
COLUMN percent FORMAT 999.99
SELECT sid, to_char(start_time,'hh24:mi:ss') stime,
message,( sofar/totalwork)* 100 percent
FROM v$session_longops
WHERE sofar/totalwork < 1
/
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NodeJS - Error installing with NPM
...t least) 2 ways to resolve this.
Installing the Cygwin package cygutils-extra and use winln.
Use native Windows CMD in Admin mode.
For (1) you can create a proper symlink from within Cygwin shell by doing these steps:
# To make the Cygwin environment treat Windows links properly:
# Alternat...
Cycles in family tree software
...ernally should be going to A on presentation of data.
This will make some extra work for the user, but I guess IT would be relatively easy to implement and maintain.
Building from that, you could work on code synching A and B to avoid inconsistencies.
This solution is surely not perfect, but is a...
How to remove/ignore :hover css style on touch devices
...rently.
There are two main options that occur to me immediately: (1) user-string checking, or (2) maintaining separate mobile pages using a different URL and having users choose what's better for them.
If you're able to use an internet duct-tape language such as PHP or Ruby, you can check the use...
Passing Parameters JavaFX FXML
...age;
public class Main extends Application {
public static void main(String[] args) {
launch(args);
}
@Override
public void start(Stage primaryStage) {
// Create the first controller, which loads Layout1.fxml within its own constructor
Controller1 controll...
How to vertically align an image inside a div
...ng" height=3px />
</div>
Or, if you don't want to have an extra element in modern browsers and don't mind using Internet Explorer expressions, you can use a pseudo-element and add it to Internet Explorer using a convenient Expression, that runs only once per element, so there won't ...
How to group time by hour or by 10 minutes
...ind of guy)
In Oracle:
SELECT timeslot, COUNT(*)
FROM
(
SELECT to_char(l_time, 'YYYY-MM-DD hh24') timeslot
FROM
(
SELECT l_time FROM mytab
)
) GROUP BY timeslot
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