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How to use Oracle ORDER BY and ROWNUM correctly?
I am having a hard time converting stored procedures from SQL Server to Oracle to have our product compatible with it.
4 An...
Is there a difference between foo(void) and foo() in C++ or C?
...aking no arguments"
By writing foo(void), therefore, we achieve the same interpretation across both languages and make our headers multilingual (though we usually need to do some more things to the headers to make them truly cross-language; namely, wrap them in an extern "C" if we're compiling C++...
Catching java.lang.OutOfMemoryError?
...an that the JVM is out of memory in the catch block:
private static final int MEGABYTE = (1024*1024);
public static void runOutOfMemory() {
MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
for (int i=1; i <= 100; i++) {
try {
byte[] bytes = new byte[MEGA...
How do I count unique values inside a list
...s are thrown away, and list.count() is O(n) anyway. You don't even need to convert aa to list at all. See Vidul's answer instead.
– wjandrea
Sep 23 at 15:38
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Where does Console.WriteLine go in ASP.NET?
...J2EE application (like one running in WebSphere), when I use System.out.println() , my text goes to standard out, which is mapped to a file by the WebSphere admin console.
...
What can I use instead of the arrow operator, `->`?
... want to see pretty code, then look at the documentation for inside the Macintosh. I think they invented CamelCase. Very descriptive variable names and elegantly formatted code. They managed to make their later C code almost as gorgeous as their earlier Pascal code.
– ATL_DEV...
What is the easiest way to make a C++ program crash?
I'm trying to make a Python program that interfaces with a different crashy process (that's out of my hands). Unfortunately the program I'm interfacing with doesn't even crash reliably! So I want to make a quick C++ program that crashes on purpose but I don't actually know the best and shortest way ...
What is the curiously recurring template pattern (CRTP)?
...you can use it like this
struct Apple:public Equality<Apple>
{
int size;
};
bool operator < (Apple const & a1, Apple const& a2)
{
return a1.size < a2.size;
}
Now, you haven't provided explicitly operator == for Apple? But you have it! You can write
int main()
{
...
How do I detect if software keyboard is visible on Android Device or not?
...dShowing = false;
void onKeyboardVisibilityChanged(boolean opened) {
print("keyboard " + opened);
}
// ContentView is the root view of the layout of this activity/fragment
contentView.getViewTreeObserver().addOnGlobalLayoutListener(
new ViewTreeObserver.OnGlobalLayoutListener() {
@O...
Android java.lang.VerifyError?
...getting sporadic errors from my users and I tracked it down to View.getTag(int) call that is not supported in v. 3 of API
– Bostone
Aug 14 '10 at 6:33
1
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