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Checking for a null int value from a Java ResultSet
...r your iVal declaration. In which case your test is completely redundant.
If you actually want to do something different if the field value is NULL, I suggest:
int iVal = 0;
ResultSet rs = magicallyAppearingStmt.executeQuery(query);
if (rs.next()) {
iVal = rs.getInt("ID_PARENT");
if (rs.wa...
Scale Image to fill ImageView width and keep aspect ratio
...up/down-scale as needed keeping aspect ratio.
scaleType="centerInside"
if the intrinsic width of src is smaller than parent widthwill center the image horizontally
if the intrinsic width of src is larger than parent widthwill make it as wide as the parent allows and down-scale keeping aspect ra...
ng-repeat finish event
...sing directives might be all you need and b) there are a few ng-Repeat specific properties you can use to make your "on ngRepeat finished" event.
Specifically, if all you want is to style/add events to the whole of the table, you can do so using in a directive that encompasses all the ngRepeat elem...
Relationship between hashCode and equals method in Java [duplicate]
...hash tables, and hash buckets are a function of the object's .hashCode().
If you have two objects which are .equals(), but have different hash codes, you lose!
The part of the contract here which is important is: objects which are .equals() MUST have the same .hashCode().
This is all documented i...
App Inventor 2 SQLite 拓展：超流行兼容主流SQL语法的迷你本地数据库引擎...
...名，这些名称在任何数据库中都不建议使用中文。
与 TaifunSQLite 功能类似，但TaifunSQLite是收费的，美刀。
1.2版本更新（2025/09/15）
默认sqlite3
优化库导入导出方法
.aix 拓展下载：
cn.fun123.SQ...
Python if-else short-hand [duplicate]
...
The most readable way is
x = 10 if a > b else 11
but you can use and and or, too:
x = a > b and 10 or 11
The "Zen of Python" says that "readability counts", though, so go for the first way.
Also, the and-or trick will fail if you put a variable ...
VC/Linux C++ 递归访问目录下所有文件 - C/C++ - 清泛网 - 专注C/C++及内核技术
...,"\\*.*");
HANDLE hFind=::FindFirstFile(szFind,&FindFileData);
if(INVALID_HANDLE_VALUE == hFind) return;
while(TRUE)
{
if(FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
{
if(FindFileData.cFileName[0]!='.')
{
...
VC/Linux C++ 递归访问目录下所有文件 - c++1y / stl - 清泛IT社区，为创新赋能！
...bsp; HANDLE hFind=::FindFirstFile(szFind,&FindFileData);
if(INVALID_HANDLE_VALUE == hFind) return;
while(TRUE)
{
if(FindFileData.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
&nb...
Cannot set some HTTP headers when using System.Net.WebRequest
...
If you need the short and technical answer go right to the last section of the answer.
If you want to know better, read it all, and i hope you'll enjoy...
I countered this problem too today, and what i discovered today is...
Bash script error [: !=: unary operator expected
In my script I am trying to error check if the first and only argument is equal to -v but it is an optional argument. I use an if statement but I keep getting the unary operator expected error.
...