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Best way to convert an ArrayList to a string
...ate over the ArrayList is the only option:
DO NOT use this code, continue reading to the bottom of this answer to see why it is not desirable, and which code should be used instead:
ArrayList<String> list = new ArrayList<String>();
list.add("one");
list.add("two");
list.add("three");
...
Indenting #defines
...
As some have already said, some Pre-ANSI compilers required the # to be the first char on the line but they didn't require de preprocessor directive to be attached to it, so indentation was made this way.
#ifdef SDCC
# if DEBUGGING == 1
#...
Why catch and rethrow an exception in C#?
...ed the case, though a comment might equally suffice. Not guessing when you read code is a good thing.
– annakata
May 19 '09 at 8:36
90
...
In C# what is the difference between ToUpper() and ToUpperInvariant()?
...g System;
using System.Drawing;
using System.Globalization;
using System.Threading;
using System.Windows.Forms;
public class Test
{
[STAThread]
static void Main()
{
string invariant = "iii".ToUpperInvariant();
CultureInfo turkey = new CultureInfo("tr-TR");
Thread...
Mixing a PHP variable with a string literal
...
Thanks. I tried reading the strings manual but wasn't sure exactly what I was looking for to search it for what I was after.
– Matt McDonald
Mar 20 '11 at 14:00
...
std::string to char*
...s going to be implemented and under what conditions. Some should learn to read, understand questions and to answer what is actually being asked. No need to show off here.
– user912695
Sep 9 '11 at 16:19
...
How to correctly use the extern keyword in C
...
It has already been stated that the extern keyword is redundant for functions.
As for variables shared across compilation units, you should declare them in a header file with the extern keyword, then define them in a single source fi...
Test if object implements interface
...
@dsdsdsdsd Since this post I didn't even heard/read about it, but after looking up on Google I figured it out it is abbreviation of the Null Pointer Exception.
– ozanmuyes
May 24 '16 at 20:21
...
Is it possible to use argsort in descending order?
...observe that the big elements are coming last in the argsort. So, you can read from the tail of the argsort to find the n highest elements:
avgDists.argsort()[::-1][:n]
Both methods are O(n log n) in time complexity, because the argsort call is the dominant term here. But the second approach h...
Java and SQLite [closed]
...end some SQL commands to create a table, store some data in the table, and read it back and display on console. It will create the test.db file in the root directory of the project. You can run this example with java -cp .:sqlitejdbc-v056.jar Test.
package com.rungeek.sqlite;
import java.sql.Conn...