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C++ valarray vs. vector
...
I wouldn't decide that based on fear. I'd decide it based on whether you need to store elements that use features it prohibits.
– Jerry Coffin
Dec 10 '15 at 20:53
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Alter MySQL table to add comments on columns
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Script for all fields on database:
SELECT
table_name,
column_name,
CONCAT('ALTER TABLE `',
TABLE_SCHEMA,
'`.`',
table_name,
'` CHANGE `',
column_name,
'` `',
column_name,
'` ',
colu...
How do you make a web application in Clojure? [closed]
...l because side effects are necessary to actually do things, like write database records, download files, post to a REST server, generate images, etc...
– lfalin
Mar 12 '14 at 9:41
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Why does this assert throw a format exception when comparing structures?
...rivate class MyClass
{
public MyClass(int width, int height)
: base()
{ Width = width; Height = height; }
public int Width { get; set; }
public int Height { get; set; }
}
[TestMethod]
public void TestMethod1()
{
var test1 = new MyClass(0, 0);
var test2 = new MyClass...
'parent.relativePath' points at my com.mycompany:MyProject instead of org.apache:apache - Why?
... meant you should write the correct value for <relativePath> element based on where your parent pom is relative to the current pom.
– mkleint
Jun 16 '11 at 10:18
1
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Are Java static calls more or less expensive than non-static calls?
...other.
Third: much of the mythos surrounding static versus non-static are based either on very old JVMs (which did not do anywhere near the optimization that Hotspot does), or some remembered trivia about C++ (in which a dynamic call uses one more memory access than a static call).
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Mutable vs immutable objects
...cause bugs at odd times. For example, consider a Person bean with a value-based equals method:
Map<Person, String> map = ...
Person p = new Person();
map.put(p, "Hey, there!");
p.setName("Daniel");
map.get(p); // => null
The Person instance gets "lost" in the map when used as a k...
What are Transient and Volatile Modifiers?
...ted in a multi-thread application without using native or standard library-based synchronization. Similarly, reads and writes to volatile fields are atomic. (This does not apply to >>non-volatile<< long or double fields, which may be subject to "word tearing" on some JVMs.) The relevan...
Does List guarantee insertion order?
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As Bevan said, but keep in mind, that the list-index is 0-based. If you want to move an element to the front of the list, you have to insert it at index 0 (not 1 as shown in your example).
share
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What exactly is Spring Framework for? [closed]
...st<User> getUsers();
}
And maybe an implementation accessing a database to get all the users:
public class UserListerDB implements UserLister {
public List<User> getUsers() {
// DB access code here
}
}
In your view you'll need to access an instance (just an example, ...