sh tag

193 questions


1 answers
94 views
0
Code that makes errors in the middle

I'm working on a Python program that interacts with errors in the C++ processThe C++ program I made sometimes fails, but sometimes it works fine.The C++ program needs to be consistently brokenIt can b...

2 years ago

1 answers
150 views
0
Why does String's hashCode() use 31 to multiply?

In Java, the hash code for the String object is s[0]*31n-1 + s[1]*31n-2 + ... + s[n-1] is calculated like this. To illustrate the above equation, s[i] is the ith character in the string, n is the leng...

2 years ago

1 answers
87 views
0
When implementing web push service from node.js to socket.io

Hello, everyone Node.js wants to use socket.io to implement real-time push services on the web.There is a push server and a web server separately, but I want to push to the push server when I write a ...


1 answers
80 views
0
Using the SSH Library in Java

Does anyone know a good library for SSH login in Java?

2 years ago

1 answers
105 views
0
I'd like to implement push notification on the web messenger.

I made a websiteThere is a chat function. I want to have a push notification on my PC when I get a message from the other person. (Like Kakao Talk)You want to use PHP or Javascript for languages.Pleas...

2 years ago

1 answers
131 views
0
[JAVA] I have a question about HASH in HASH.

Hello, I am a student studying Android.HASH is in the HASHMAP.Well, to put it simply, KEY : valueA : 1B : 2C : 3D : 4E : 5There's this HASH, and dozens of these types of hashes have gone into the new ...

2 years ago

1 answers
118 views
0
Push notifications on Android platforms

I'm making an app that receives push notifications from the server. I found some ways to do that.SMS - Block incoming sms and pull them to the server.Poll - Periodically checks the server.There are tw...

2 years ago

1 answers
91 views
0
Linux - Override standard errors in the Bash shell: I'm not sure what File Descriptor means.

I've read the terms and conditions, but there's nothing related to the question like Stack Overflow, so I'm asking about Linux.When I was reading a translation of The Linux Command Line (Complete Intr...

2 years ago

1 answers
78 views
0
php push notification on/off function question

Currently, there is a php bulletin board, and when registering the notice, we use fcm to send a push through the web app.I want to turn off and turn on the push according to push on and off on the bul...

2 years ago

1 answers
76 views
0
I have a question regarding Git and GitHub.

When using GitHub, use programs such as terminals and msysGit, whether Macintosh or Windows.During the first setup process, there is a process of generating a key using SSH Keygen and registering the ...

2 years ago
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