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Bytecode features not available in the Java language
...to exploit this "feature" in Java versions before 6:
class Foo {
public String s;
public Foo() {
System.out.println(s);
}
}
class Bar extends Foo {
public Bar() {
this(s = "Hello World!");
}
private Bar(String helper) {
super();
}
}
This way, a field could be set before...
How to get the last N records in mongodb?
...
If I understand your question, you need to sort in ascending order.
Assuming you have some id or date field called "x" you would do ...
.sort()
db.foo.find().sort({x:1});
The 1 will sort ascending (oldest to newest) and -1 will so...
Calculate a Running Total in SQL Server
...QL Server implementation of the Over clause is somewhat limited.
Oracle (and ANSI-SQL) allow you to do things like:
SELECT somedate, somevalue,
SUM(somevalue) OVER(ORDER BY somedate
ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW)
AS RunningTotal
FROM Table
SQL Server gi...
What is the difference between JOIN and JOIN FETCH when using JPA and Hibernate
Please help me understand where to use a regular JOIN and where a JOIN FETCH.
5 Answers
...
How do I scroll to an element using JavaScript?
...e an anchor to "focus" the div. I.e:
<div id="myDiv"></div>
and then use the following javascript:
// the next line is required to work around a bug in WebKit (Chrome / Safari)
location.href = "#";
location.href = "#myDiv";
...
ANTLR: Is there a simple example?
...org.antlr.runtime.*;
public class ANTLRDemo {
public static void main(String[] args) throws Exception {
ANTLRStringStream in = new ANTLRStringStream("12*(5-6)");
ExpLexer lexer = new ExpLexer(in);
CommonTokenStream tokens = new CommonTokenStream(lexer);
ExpParser...
Difference between single and double quotes in Bash
...or anyone who doesn't know what "interpolate" means: en.wikipedia.org/wiki/String_interpolation
– Kolob Canyon
May 10 '18 at 17:57
1
...
How many GCC optimization levels are there?
...rst part of this function:
does integral_argument which calls atoi on the string corresponding to OPT_O to parse the input argument
stores the value inside opts->x_optimize where opts is a struct gcc_opts.
struct gcc_opts
After grepping in vain, we notice that this struct is also generated at ...
How to get value of selected radio button?
...d answer you can check which of the radio buttons in the group is selected and get only the value of the selected (checked) one.
– Broco
Sep 4 '14 at 18:21
4
...
How to vertically align a html radio button to it's label?
... This seemed to give me the most consistent approach between Mac, Windows, and Linux, using Chrome, Firefox, or IE. Also, I noticed that if I give padding on my label and put the radio inside the label, then I may need to set margin-top to a value less than -1px (like -3px) based on how much padding...