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Getting Java version at runtime
... cut the string to its first dot character, if one exists.
private static int getVersion() {
String version = System.getProperty("java.version");
if(version.startsWith("1.")) {
version = version.substring(2, 3);
} else {
int dot = version.indexOf(".");
if(dot != ...
What is the difference between the | and || or operators?
...wo usages? Are there any caveats when using one over the other or are they interchangeable?
12 Answers
...
How do we count rows using older versions of Hibernate (~2009)?
... As @Salandur suggests, "It is at least a Number", and Number type has "intValue()", "longValue()" methods, so we can easily get the desired primitive type we want: ((Number) criteria.uniqueResult()).intValue()
– Jerry Tian
Feb 22 '12 at 3:28
...
Optional query string parameters in ASP.NET Web API
.../ ...
}
public class Paging
{
public string Sort { get; set; }
public int Skip { get; set; }
public int Take { get; set; }
}
Update:
In order to ensure the values are optional make sure to use reference types or nullables (ex. int?) for the models properties.
...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...vs2005或VC建立一个Win32工程，然后看自动生成的代码：
int APIENTRY _tWinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPTSTR lpCmdLine,
int nCmdShow)
{
...
// 主消息循环:
while (G...
Benefits of inline functions in C++?
...
I could see a situation like this making a detectable difference:
inline int aplusb_pow2(int a, int b) {
return (a + b)*(a + b) ;
}
for(int a = 0; a < 900000; ++a)
for(int b = 0; b < 900000; ++b)
aplusb_pow2(a, b);
...
When is a C++ destructor called?
...
1) If the object is created via a pointer and that pointer is later deleted or given a new address to point to, does the object that it was pointing to call its destructor (assuming nothing else is pointing to it)?
It depends on the type of pointers. For exam...
Will the base class constructor be automatically called?
... need additional parameters. For example:
public class Base
{
public int SomeNumber { get; set; }
public Base(int someNumber)
{
SomeNumber = someNumber;
}
}
public class AlwaysThreeDerived : Base
{
public AlwaysThreeDerived()
: base(3)
{
}
}
In or...
Is there a Java equivalent to C#'s 'yield' keyword?
...rtable (for example, I don't think Aviad's library will work on Android).
Interface
Aviad's library has a cleaner interface - here's an example:
Iterable<Integer> it = new Yielder<Integer>() {
@Override protected void yieldNextCore() {
for (int i = 0; i < 10; i++) {
...
How to handle ListView click in Android
...@Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { Toast.makeText(MainActivity.this, "You Clicked at " +countries[+ position], Toast.LENGTH_SHORT).show(); }
– bourax webmaster
Apr 5 '14 at 9:51
...