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How to call a parent class function from derived class function?
...led child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the parents print function. How would I go about doing this?
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Efficient way to return a std::vector in c++
... it be to place the std::vector in free-store (on the heap) and return a pointer instead i.e. is:
8 Answers
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How to capture the “virtual keyboard show/hide” event in Android?
...() {
@Override
public void onGlobalLayout() {
int heightDiff = activityRootView.getRootView().getHeight() - activityRootView.getHeight();
if (heightDiff > 100) { // 99% of the time the height diff will be due to a keyboard.
Toast.makeText(g...
Overloading Macro on Number of Arguments
...oes not work on Microsoft Visual Studio 2010, VA_ARGS seems to be expanded into a single macro argument.
– Étienne
Oct 28 '14 at 11:32
9
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Soft keyboard open and close listener in an activity in Android
...r() {
@Override
public void onGlobalLayout() {
int heightDiff = rootLayout.getRootView().getHeight() - rootLayout.getHeight();
int contentViewTop = getWindow().findViewById(Window.ID_ANDROID_CONTENT).getTop();
LocalBroadcastManager broadcastManage...
Random float number generation
...ND_MAX and a little math, you can generate random numbers in any arbitrary interval you choose. This is sufficient for learning purposes and toy programs. If you need truly random numbers with normal distribution, you'll need to employ a more advanced method.
This will generate a number from 0....
Checking the equality of two slices
...DeepEqual may do something you don't expect such as saying two different pointers are equal because the values they point to are equal.
– Stephen Weinberg
Mar 25 '15 at 14:04
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How can I get screen resolution in java?
...raphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
int width = gd.getDisplayMode().getWidth();
int height = gd.getDisplayMode().getHeight();
If you want to get the screen resolution in DPI you'll have to use the getScreenResolution() method on Toolkit.
Resources :
ja...
Cleaning `Inf` values from an R dataframe
...ar)
dat %>% rationalize()
Which return a data frame with all Inf are converted to NA.
Timings compared to some above solutions. Code:
library(hablar)
library(data.table)
dat <- data.frame(a = rep(c(1,Inf), 1e6), b = rep(c(Inf,2), 1e6),
c = rep(c('a','b'),1e6),d = rep(c(...
Remove Item from ArrayList
... it has 8 items A-H and now I want to delete 1,3,5 position Item stored in int array from the list how can I do this.
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