大约有 30,000 项符合查询结果（耗时：0.0326秒） [XML]
How to convert a Binary String to a base 10 integer in Java
...y need to sign extend your string then convert to an Int
public class bit_fun {
public static void main(String[] args) {
int x= (int)Long.parseLong("FFFFFFFF", 16);
System.out.println("x =" +x);
System.out.println(signExtend("1"));
x= (int)Long.parseLong(...
Pairs from single list
...
The first (pairwise) function seems to be missing the cloning and advancing of the second iterator. See the itertools recipes section.
– Apalala
Jan 7 '11 at 18:40
...
Android read text raw resource file
...sample).bufferedReader().use { it.readText() }
Or even declare extension function:
fun Resources.getRawTextFile(@RawRes id: Int) =
openRawResource(id).bufferedReader().use { it.readText() }
And then just use it straightaway:
val txtFile = resources.getRawTextFile(R.raw.rawtextsample)
...
Why doesn't “System.out.println” work in Android?
...when i have to check for example where it goes in a switch case code! Have fun coding! :)
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What's the best way to learn LISP? [closed]
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Pick up The Land of Lisp by Conrad Barski. It is a fun filled introduction to Lisp programming using cartoons and games.
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Android: ScrollView force to bottom
...rollLayout.smoothScrollBy(0, delta);
This works well.
Kotlin Extension
fun ScrollView.scrollToBottom() {
val lastChild = getChildAt(childCount - 1)
val bottom = lastChild.bottom + paddingBottom
val delta = bottom - (scrollY+ height)
smoothScrollBy(0, delta)
}
...
print call stack in C or C++
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Boost stacktrace
Documented at: https://www.boost.org/doc/libs/1_66_0/doc/html/stacktrace/getting_started.html#stacktrace.getting_started.how_to_print_current_call_stack
This is the most convenient option I've seen so far, because it:
can actually print ...
How to set tint for an image view programmatically in android?
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Better simplified extension function thanks to ADev
fun ImageView.setTint(@ColorRes colorRes: Int) {
ImageViewCompat.setImageTintList(this, ColorStateList.valueOf(ContextCompat.getColor(context, colorRes)))
}
Usage:-
imageView.setTint(R.color.ti...
Check if a value exists in pandas dataframe index
...ta, 'value')
True
>>> '1' in getattr(df_data, 'value')
False
So fun :D
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Add new row to dataframe, at specific row-index, not appended?
...trix(seq(20),nrow=5,ncol=4))
r <- 3
newrow <- seq(4)
insertRow <- function(existingDF, newrow, r) {
existingDF[seq(r+1,nrow(existingDF)+1),] <- existingDF[seq(r,nrow(existingDF)),]
existingDF[r,] <- newrow
existingDF
}
> insertRow(existingDF, newrow, r)
V1 V2 V3 V4
1 1 6...