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How to quickly and conveniently create a one element arraylist [duplicate]
...st way, that I know of, is to create a fixed-size single element List with Arrays.asList(T...) like
// Returns a List backed by a varargs T.
return Arrays.asList(s);
Variable size List
If it needs vary in size you can construct an ArrayList and the fixed-sizeList like
return new ArrayList<St...
How to convert byte array to string and vice versa?
I have to convert a byte array to string in Android, but my byte array contains negative values.
22 Answers
...
How to var_dump variables in twig templates?
...ion as a component you can do this:
$twig = new Twig_Environment($loader, array(
'autoescape' => false
));
$twig->addFilter('var_dump', new Twig_Filter_Function('var_dump'));
Then in your templates:
{{ my_variable | var_dump }}
...
Javascript Reduce an empty array
When I reduce the array, I am trying to get the number zero, but I dont clearly understand the behaviour of the function
2 ...
Find object in list that has attribute equal to some value (that meets any condition)
...
A simple example:
We have the following array
li = [{"id":1,"name":"ronaldo"},{"id":2,"name":"messi"}]
Now, we want to find the object in the array that has id equal to 1
Use method next with list comprehension
next(x for x in li if x["id"] == 1 )
Use li...
Is it better to reuse a StringBuilder in a loop?
... concurrency checks nullify the speed advantage.
– P Arrayah
Nov 11 '08 at 21:00
1
Inefficient an...
What are the benefits of functional programming? [closed]
...d of creating a for-loop with an iterator variable and marching through an array doing something to each cell, you'd say the equivalent of "this label refers to a version of this array where this function has been done on all the elements."
Functional programming moves more basic programming ideas ...
Perform .join on value in array of objects
If I have an array of strings, I can use the .join() method to get a single string, with each element separated by commas, like so:
...
string c_str() vs. data()
... required to be null-terminated. According to cppreference: "The returned array is null-terminated, that is, data() and c_str() perform the same function."
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Ship an application with a database
... }
/**
* Parses a file containing sql statements into a String array that contains
* only the sql statements. Comments and white spaces in the file are not
* parsed into the String array. Note the file must not contained malformed
* comments and all sql statements must end...