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Determine if the device is a smartphone or tablet? [duplicate]
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This subject is discussed in the Android Training:
Use the Smallest-width Qualifier
If you read the entire topic, they explain how to set a boolean value in a specific value file (as res/values-sw600dp/attrs.xml):
<resources>
<bool name="isTa...
Ruby - test for array
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There's also is_a? and instance_of?. See stackoverflow.com/questions/3893278/…
– Nathan Long
Mar 21 '11 at 15:57
2
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How to exit pdb and allow program to continue?
I'm using the pdb module to debug a program. I'd like to understand how I can exit pdb and allow the program to continue onward to completion. The program is computationally expensive to run, so I don't want to exit without the script attempting to complete. continue doesn't seems to work. How can...
How to un-commit last un-pushed git commit without losing the changes
...e to dig it from reflog in case you screw up :) )
revert commit normally and push
git checkout master
git revert a8172f36 #hash of the commit you want to destroy
# this introduces a new commit (say, it's hash is 86b48ba) which removes changes, introduced in the commit in question (but those chan...
How do I use the conditional operator (? :) in Ruby?
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It is the ternary operator, and it works like in C (the parenthesis are not required). It's an expression that works like:
if_this_is_a_true_value ? then_the_result_is_this : else_it_is_this
However, in Ruby, if is also an expression so: if a then b ...
Is it possible to serialize and deserialize a class in C++?
Is it possible to serialize and deserialize a class in C++?
13 Answers
13
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cartesian product in pandas
I have two pandas dataframes:
11 Answers
11
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Convenient C++ struct initialisation
...you don't have to wait, because they are officialy supported by GCC, Clang and MSVC.
#include <iostream>
#include <filesystem>
struct hello_world {
const char* hello;
const char* world;
};
int main ()
{
hello_world hw = {
.hello = "hello, ",
.world = "worl...
How do I generate random integers within a specific range in Java?
How do I generate a random int value in a specific range?
66 Answers
66
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Printing HashMap In Java
...y returns a set of keys from your hashmap, you should iterate this key set and the get the value from the hashmap using these keys.
In your example, the type of the hashmap's key is TypeKey, but you specified TypeValue in your generic for-loop, so it cannot be compiled. You should change it to :
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