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java.net.ConnectException: Connection refused
I'm trying to implement a TCP connection, everything works fine from the server's side but when I run the client program (from client computer) I get the following error:
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Check free disk space for current partition in bash
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Yes:
df -k .
for the current directory.
df -k /some/dir
if you want to check a specific directory.
You might also want to check out the stat(1) command if your system has it. You can specify output formats to make it easier for your script to parse. Here's a little exam...
Detect when an image fails to load in Javascript
......) depending on the server you are getting an image from. For example, sometimes imgur don't send an image that exists nor an 404 status and the error event is not triggered in this case.
– user3233318
Jun 4 '15 at 13:02
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How to enable/disable bluetooth programmatically in android
... answered Sep 27 '10 at 19:10
James SchekJames Schek
17.1k77 gold badges4545 silver badges6464 bronze badges
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Joins are for lazy people?
I recently had a discussion with another developer who claimed to me that JOINs (SQL) are useless. This is technically true but he added that using joins is less efficient than making several requests and link tables in the code (C# or Java).
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inject bean reference into a Quartz job in Spring?
...pring's Quartz jobs, because I need to schedule them dynamically, at run time, and all examples of integrating Spring with Quartz that i found were hard-coding the shcedules in the Spring config files... Anyway, here is how I schedule the job:
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Mathematical functions in Swift
...round's file properties (Cmd-Opt-0), or import UIKit instead, per above comment
– Chris Conover
Sep 29 '14 at 21:35
1
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Find out who is locking a file on a network share
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Just in case someone looking for a solution to this for a Windows based system or NAS:
There is a built-in function in Windows that shows you what files on the local computer are open/locked by remote computer (which has the file open thr...
How to solve “Could not establish trust relationship for the SSL/TLS secure channel with authority”
...h can seriously compromise client security. You could refine this and do some custom checking (for certificate name, hash etc).
at least you can circumvent problems during development when using test certificates.
share
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Base64 encoding in SQL Server 2005 T-SQL
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I know this has already been answered, but I just spent more time than I care to admit coming up with single-line SQL statements to accomplish this, so I'll share them here in case anyone else needs to do the same:
-- Encode the string "TestData" in Base64 to get "VGVzdERhdGE="
SELECT
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