Backend>Questions

isReachable in Java throws an IOException

sona11

sona11

isReachable in Java throws an IOException

If isReachable throws an IOException in Java, what is the right step to do and why?

The application, I believe, should halt the process and output the system message: the host is not accessible. Because isReachable throws an IOException, the host cannot be reached. But I’m not sure what the solution is. I would be grateful if you could assist me.

thank you very much

View thread on forum
/java
1 775 0

Where Next?

View thread on forum
java
Home Backend>Questions
/java
1 775 0
Last post

Popular Backend topics Top

Kurisu
Backend>Questions

Ruby on Rails book recommendations please
Hello and happy new year! I would like to buy a Ruby On Rails ebook for learning purpose. What would be the ROR equivalent of “Programm...
/ruby/rails#book
17 1809 7
New
bsek43
Backend>Questions

Phoenix LiveView learning resources?
Hello everyone, I’ve started learning Elixir and Phoenix few months ago and while I mostly grasped Elixir’s functional concepts and Phoe...
/phoenix
10 1394 3
New
Fl4m3Ph03n1x
Backend>Questions

How to set env vars on GitHub Actions for a Windows release?
Background I am trying to get a Github Action working with Windows and Bakeware because I am trying to create a release using it. Howeve...
/elixir#github
6 1072 1
New
JimmyCarterSon
Backend>Questions

Ecto issue, not sure how to do this?
Hello, I am. very new to Elixir lang I have only been doing it for about 2 weeks. I recently started following this tutorial todo list, ...
/elixir/phoenix#beginner#ecto
12 2176 3
New
GermaVinsmoke
Backend>Questions

Does anyone know beginner friendly Elixir/Phoenix Open source projects?
Does anyone know beginner friendly Elixir/Phoenix Open source projects? For learning purpose :slightly_smiling_face:
/elixir/phoenix
4 964 2
New
Fl4m3Ph03n1x
Backend>Questions

How to typespec guards in a human friendly way?
Background I am a fan of dialyzer and friends (looking at Gradient) and I try to have sepcs in my code as much as I can. To this end, I a...
/elixir#types#dialyzer
3 930 1
New
harwind
Backend>Questions

Declaring Strings In C
In C, how they are different? char str[] = "xyz"; // statement //and char str[4] = "xyz"; // statement The first, i...
/c
1 733 0
New
Fl4m3Ph03n1x
Backend>Questions

Cannot compile ssl_verify_fun in Windows 11 for Elixir
Background I have a phoenix application in Windows 11. Unfortunately for me, I cannot compile the application because of a dependency err...
/elixir/phoenix
4 1342 2
New
yamuna
Backend>Questions

How to run Ollama deepseek-coder:6.7b-instruct-q4_K_M in Docker for CrewAI Agents?
Hi everyone, I’m trying to run deepseek-coder:6.7b-instruct-q4_K_M in Docker using Ollama to create an LLM that will be used by CrewAI a...
#docker/deepseek#ollama
0 1975 0
New
Shiny
Backend>Questions

What do you think is a good direction to go for someone with a Rails background?
Hey community, this is my first post here so I will try to be as concise as possible and I appreciate any feedback. I’ve been writing Ro...
/ruby/rails#help-needed
18 562 11
New

Other popular topics Top

ohm
Science/Tech>Tech Chat

Games! Which do you play?
Which, if any, games do you play? On what platform? I just bought (and completed) Minecraft Dungeons for my Nintendo Switch. Other than ...
#games
246 5882 101
New
dasdom
General Dev>Dev Chat

Standing Desks
No chair. I have a standing desk. This post was split into a dedicated thread from our thread about chairs :slight_smile:
#workspace#opinions
177 9043 77
New
brentjanderson
General Dev>Hardware

Moonlander Keyboard (Mechanical) (Ergonomic) (Split) (Ortholinear)
Bought the Moonlander mechanical keyboard. Cherry Brown MX switches. Arms and wrists have been hurting enough that it’s time I did someth...
#hardware/keyboards#moonlander#mechanical-keyboards#ortholinear#ergonomic
212 16447 90
New
Rainer
Community>Journals

Programming Erlang Book Club
My first contact with Erlang was about 2 years ago when I used RabbitMQ, which is written in Erlang, for my job. This made me curious and...
/erlang/book-programming-erlang-2nd-edition#book-club
195 6634 95
New
dimitarvp
macOS>Chat

My thoughts on macOS vs Linux
Small essay with thoughts on macOS vs. Linux: I know @Exadra37 is just waiting around the corner to scream at me “I TOLD YOU SO!!!” but I...
#macos#linux
166 8678 69
New
PragmaticBookshelf
Backend>Learning Resources

Programming WebRTC
Use WebRTC to build web applications that stream media and data in real time directly from one user to another, all in the browser. ...
pragprog.com
#pragprog#published-book/js#webrtc/book-programming-webrtc
27 4743 6
New
PragmaticBookshelf
Backend>Learning Resources

Effective Haskell
Build efficient applications that exploit the unique benefits of a pure functional language, learning from an engineer who uses Haskell t...
pragprog.com
#pragprog/haskell#published-book/book-effective-haskell
15 7817 1
New
First poster: bot
General Dev>In The News

Zig now has built-in HTTP server and client in std
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
github.com
/zig#http
0 4388 0
New
AstonJ
Backend>Questions

Psql: error: connection to server on socket "/tmp/.s.PGSQL.5432" failed: No such file or directory
If you’re getting errors like this: psql: error: connection to server on socket “/tmp/.s.PGSQL.5432” failed: No such file or directory ...
#macos/rails/postgresql
1 4231 1
New
PragmaticBookshelf
Backend>Learning Resources

Ash Framework
Explore the power of Ash Framework by modeling and building the domain for a real-world web application. Rebecca Le @sevenseacat and ...
pragprog.com
#pragprog/elixir#published-book/ash/book-ash-framework
15 5191 9
New
Back to top

Sponsor Spotlight

EEF

Supporting innovation across the BEAM ecosystem.

Latest in Java

Java Portal ❯

Backend>Questions

Backend Questions ❯

Latest on Devtalk

Devtalk ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Sub Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

Honeybadger

Real-time error tracking, performance insights, and observability for devs.

EEF

Supporting innovation across the BEAM ecosystem.

Manning Publications

Develop your skills with books, videos, and courses.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap