java-programs | Collection of java programs | Learning library

by joemulray Java Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(3)Vulnerabilities Install Support

kandi X-RAY | java-programs Summary

java-programs is a Java library typically used in Tutorial, Learning applications. java-programs has no bugs, it has no vulnerabilities and it has low support. However java-programs build file is not available. You can download it from GitHub.

Collection of java programs

Support

Quality

Security

License

Reuse

Support

java-programs has a low active ecosystem.

It has 4 star(s) with 11 fork(s). There are 3 watchers for this library.

It had no major release in the last 6 months.

java-programs has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of java-programs is current.

Quality

java-programs has no bugs reported.

Security

java-programs has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

java-programs does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

java-programs releases are not available. You will need to build from source code and install.

java-programs has no build file. You will be need to create the build yourself to build the component from source.

Top functions reviewed by kandi - BETA

kandi has reviewed java-programs and discovered the below as its top functions. This is intended to give you an instant insight into java-programs implemented functionality, and help decide if they suit your requirements.

Plays a game .
Get the month name of the month
Ask the user to select a file .
This is the main method for debugging .
Calculates the standard deviation of the file .
Returns the discount of the item .
Compares this amount to another .
Sorts the array .
Gets the largest number .
Charge amount .

Get all kandi verified functions for this library.

java-programs Key Features

No Key Features are available at this moment for java-programs.

java-programs Examples and Code Snippets

No Code Snippets are available at this moment for java-programs.

Community Discussions

Trending Discussions on java-programs

Detect java program started from crontab

Is Java String constant pool shared across different JVMs?

Is it possible to limit the memory in Tomcat for a single WAR app?

QUESTION

Detect java program started from crontab

Asked 2018-Mar-19 at 09:01

On a Redhat OS, I have a script that launches a Java program. This script can be started from the command line but is launched (periodically) by crontab as well.
Within this program, I need to know how the program was started. This because the output is written either to STDOUT (if started from the command line) or in a logfile (if launched by crontab).

First I thought I could use System.console().
The problem is that this method returns null also if the program was started from the command line but with STDIN and/or STDOUT redirected.

Any idea how to resolve this?
I tried How can I check if a Java program's input/output streams are connected to a terminal? but that doesn't answer my question.

...

ANSWER

Answered 2018-Mar-19 at 08:59

Use an environment variable that you set in the cron job before starting the java program. Query the environment variable inside your program.

Source https://stackoverflow.com/questions/49359017

QUESTION

Is Java String constant pool shared across different JVMs?

Asked 2018-Jan-19 at 09:50

As clear from the answer each application will run in a specific Java Virtual Machine Instance.And it is clear from this post that java string is immutable and JVM sets aside a special area of memory called the "String constant pool" to store strings.

My question is that if there is a single shared String constant pool for each web application or JVM, OR there is a separate String constant pool for each web application and jvm instance.

...

ANSWER

Answered 2018-Jan-19 at 09:50

A string pool can not be shared between different JVMs. It is implemented as a hash table of references to the actual String objects which live in the particular heap of each JVM. Since references to different heaps are not compatible, as each JVM has its own logical address space, the hash table can’t be shared.

There is a mechanism to share common data between JVMs, Class Data Sharing, which uses a preprocessed form of common libraries, usually of the JRE. Besides the class and member definitions and the byte code, this naturally contains all string constants, but that’s only the data, using the data to create a Java String object with a distinct identity and adding a reference to the pool is still subject to each JVM.

Source https://stackoverflow.com/questions/48335578

QUESTION

Is it possible to limit the memory in Tomcat for a single WAR app?

Asked 2017-Feb-07 at 08:31

I have a vaadin app where if I don't limit the RAM, the WAR will run it up to 2.5+gb in Tomcat but if I limit it to 1gb in eclipse using this the program will stay steady around 700mb(when no action)-1.2gb (when running a large dataset).

Is there a way to export this war with the memory constraint? I have other war apps on the same Tomcat server, but this one is the only one that runs rampant. Or is it better practice to create a separate virtual server and set the memory constraint in Tomcat just for it?

...

ANSWER

Answered 2017-Feb-07 at 08:31

Eclipse runs each program in a separate JVM.

A Tomcat instance runs inside of a JVM, and so will all web apps deployed in it. You could start a second Tomcat instance (and thus a second JVM) and set the specific memory constraints for each JVM

Source https://stackoverflow.com/questions/42077879

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install java-programs

You can download it from GitHub.
You can use java-programs like any standard Java library. Please include the the jar files in your classpath. You can also use any IDE and you can run and debug the java-programs component as you would do with any other Java program. Best practice is to use a build tool that supports dependency management such as Maven or Gradle. For Maven installation, please refer maven.apache.org. For Gradle installation, please refer gradle.org .

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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