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How to override equals method in Java
... 4));
people.add(new Person("Subash Adhikari", 28));
for (int i = 0; i < people.size() - 1; i++) {
for (int y = i + 1; y <= people.size() - 1; y++) {
boolean check = people.get(i).equals(people.get(y));
System.out.println("-- " + pe...
PHP Sort a multidimensional array by element containing date
...
This should work. I converted the date to unix time via strtotime.
foreach ($originalArray as $key => $part) {
$sort[$key] = strtotime($part['datetime']);
}
array_multisort($sort, SORT_DESC, $originalArray);
One-liner versio...
How do Python functions handle the types of the parameters that you pass in?
...s in most programming languages, though not all) -- and there is no constraint on the name such that, if it has once referred to an object of type X, it's then forevermore constrained to refer only to other objects of type X. Constraints on names are not part of the concept of "strong typing", thou...
How to navigate through a vector using iterators? (C++)
...lt;string>::iterator it; // declare an iterator to a vector of strings
int n = 3; // nth element to be found.
int i = 0; // counter.
// now start at from the beginning
// and keep iterating over the element till you find
// nth element...or reach the end of vector.
for(it = myvector.begin(); ...
Measuring execution time of a function in C++
...r( long long i = 0; i != 2000000; ++i )
{
number += 5;
}
}
int main()
{
auto t1 = std::chrono::high_resolution_clock::now();
function();
auto t2 = std::chrono::high_resolution_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::microseconds>( ...
How do I access call log for android?
...on = c.getString(c.getColumnIndex(CallLog.Calls.DURATION));// for duration
int type = Integer.parseInt(c.getString(c.getColumnIndex(CallLog.Calls.TYPE)));// for call type, Incoming or out going.
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Calendar date to yyyy-MM-dd format in java
How to convert calendar date to yyyy-MM-dd format.
9 Answers
9
...
In C++, is it still bad practice to return a vector from a function?
... "compiler does it anyway": compiler isn't required to do that == uncertainty == bad idea (need 100% certainty). "comprehensive analysis"There is a huge problem with that analysis - it relies on undocumented/non-standard language features in unknown compiler ("Although copy elision is never requir...
C/C++中的段错误（Segmentation fault） - C/C++ - 清泛网 - 专注C/C++及内核技术
...护，而不能任意访问。
例子1：
Code:
#include <stdio.h>
int main(){
int i=0;
scanf("%d",i);
printf("%d\n",i);
return 0;
}
编译和执行一下
$ gcc -o segerr segerr.c
$ ./segerr
10
段错误
咋一看，好像没有问题...
How do I reverse a C++ vector?
...der for this purpose.
#include <vector>
#include <algorithm>
int main() {
std::vector<int> a;
std::reverse(a.begin(), a.end());
return 0;
}
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