core-java | List of core Java source code | Build Tool library

by mkyong Java Version: Current License: MIT

X-Ray Key Features Code Snippets(1)Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | core-java Summary

core-java is a Java library typically used in Utilities, Build Tool, Maven applications. core-java has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. However core-java build file is not available. You can download it from GitHub.

List of core Java source code

Support

Quality

Security

License

Reuse

Support

core-java has a low active ecosystem.

It has 195 star(s) with 150 fork(s). There are 10 watchers for this library.

It had no major release in the last 6 months.

core-java has no issues reported. There are 3 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of core-java is current.

Quality

core-java has 0 bugs and 0 code smells.

Security

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

core-java code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

core-java is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

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

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

core-java saves you 3567 person hours of effort in developing the same functionality from scratch.

It has 7629 lines of code, 574 functions and 215 files.

It has low code complexity. Code complexity directly impacts maintainability of the code.

Top functions reviewed by kandi - BETA

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

Prints an XML document from a file .
Prints XML from file .
Copy all the contents of a directory to a target file .
Creates a tar zip file .
Zips a folder into a zip file
Unzip a folder .
Writes the StAX event to the given stream .
Converts a file to a hex string .
Resize an image .
Get the ranking for a domain

Get all kandi verified functions for this library.

core-java Key Features

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

core-java Examples and Code Snippets

Test if the string is using core Java code .

java

Lines of Code : 12

License : Permissive (MIT License)

Copy

public boolean usingCoreJava(String strNum) {
        if (strNum == null) {
            return false;
        }

        try {
            Double.parseDouble(strNum);
        } catch (NumberFormatException nfe) {
            return false;
        }

Community Discussions

Trending Discussions on core-java

Conditionally Combine Lambdas in Kotlin for Filtering with Multiple Predicates

Where to handle IOException when adding a file handler to a logger in a class?

Creation of a zip with multiple files having same name

How to Run Java Module class (java 9 jigsaw project) with third party library (jar files)?

Trying to run a simple example of Java NIO SSL to load the contents of https://www.amazon.com but getting 400 Bad Request

Add extra metadata while converting JSON to XML

Java Regex - capture string with single dollar, but not when it has two successive ones

Java regex (java.util.regex). Search for dollar sign

Java String replace - non-capturing group captures

Extract address from business card with maximum probability

QUESTION

Conditionally Combine Lambdas in Kotlin for Filtering with Multiple Predicates

Asked 2020-Jun-02 at 18:56

Suppose I have the following predicates as predefined lambdas for a Villager POJO.

...

ANSWER

Answered 2020-Jun-02 at 06:10

There is the all extension function, and as a point of interest the any extension function as well. I think you just have to use them in your filter block on your predicates. Here is a very simple example with a silly set of predicates:

Source https://stackoverflow.com/questions/62144643

QUESTION

Where to handle IOException when adding a file handler to a logger in a class?

Asked 2020-Jun-02 at 02:11

I am trying to set up a logging system for my application.

I have seen here that it is possible to send logs to an individual file. The code is as follows:

...

ANSWER

Answered 2020-Jun-02 at 02:11

How shall I handle the IOException?

This is a good question and there are many different answers. I often still use System.err.println(...) to report just these sorts of issues. Specifically initialization issues where the logging subsystem, configuration, or other startup operations have failed. This means that when I run my application, there is still some sort of console.log. This also works to capture the rare JVM fault or message emitted by poorly behaving 3rd party software to stderr.

This means that if the application fails fast because of some sort of bootstrap issue, I go looking in the console.log to see if there is any information there. This also means that I should emit "System is running" type of message to the console.log so I know when to switch to looking at my logging files instead of the console if there are problems.

If the Logger constructor throws IOException, then for static fields, I catch and rethrow the exception as a RuntimeException. Something like:

Source https://stackoverflow.com/questions/62143497

QUESTION

Creation of a zip with multiple files having same name

Asked 2020-Apr-22 at 11:17

I want to zip multiple files from different locations into one.

I referred https://examples.javacodegeeks.com/core-java/util/zip/create-zip-file-from-multiple-files-with-zipoutputstream/

Here is my code

public class CreateZipFileFromMultipleFilesWithZipOutputStream {

...

ANSWER

Answered 2020-Apr-22 at 09:51

In OpenJDK 8 this is handled by the private field "names" in ZipOutputStream which is not publicly exposed. You are very clearly expected to handle this yourself.

Just have a HashSet containing filenames which you successfully added to the zip file, and check if the name is previously seen before trying to add a new file. If so, modify accordingly.

That said, you should reconsider your solution design if it may add several copies of the same file to a zip file. Either include directories to make the files unique, or just skip anything previously seen.

Source https://stackoverflow.com/questions/61359105

QUESTION

How to Run Java Module class (java 9 jigsaw project) with third party library (jar files)?

Asked 2020-Apr-12 at 11:02

Right now I'm trying to develop a Java project with pure java (no builtscript). I'm implementing the module concept from Java 9. I'm having a trouble when it comes to run a Java project (main class) with additional jar file (third party library). I have no trouble when compiling but when I try to run the java it couldn't run as expected.

I could compile this project by executing this command (javaFiles.txt contains my java files that wanted to be compiled):

...

ANSWER

Answered 2020-Feb-27 at 07:49

The path separator in all non-Windows systems is colon (:), not semicolon (;). You need to change this:

Source https://stackoverflow.com/questions/60425887

QUESTION

Trying to run a simple example of Java NIO SSL to load the contents of https://www.amazon.com but getting 400 Bad Request

Asked 2020-Apr-08 at 04:56

Trying everyting but it does not work :(

The complete code and example can be found here: https://examples.javacodegeeks.com/core-java/nio/java-nio-ssl-example/

Also you can download the full source (it is only 3 classes) by clicking here: https://examples.javacodegeeks.com/wp-content/uploads/2015/12/NioSSLExample.zip

Thanks for any help!

...

ANSWER

Answered 2020-Apr-08 at 04:56

        http.append("GET / HTTP/1.0\r\n");
        http.append("Connection: close\r\n");
        http.append("\r\n");

Source https://stackoverflow.com/questions/61093031

QUESTION

Add extra metadata while converting JSON to XML

Asked 2020-Jan-17 at 22:53

I want to convert JSON response to a SOAP-based XML Response (using underscore-java).

...

ANSWER

Answered 2019-Dec-24 at 10:05

Code:

Source https://stackoverflow.com/questions/59466516

QUESTION

Java Regex - capture string with single dollar, but not when it has two successive ones

Asked 2019-Nov-13 at 11:27

I posted this question earlier.

But that wasn't quite the end of it. All the rules that applied there still apply.

So the strings:

"%ABC%" would yield ABC as a result (capture stuff between percent signs)
as would "$ABC." (capture stuff after $, giving up when another dollar or dot appears)
"$ABC$XYZ" would too, and also give XYZ as a result.

To add a bit more to this:

"${ABC}" should yield ABC too. (ignore curly braces if present - non capture chars perhaps?).
if you have two successive dollar signs, such as "$$EFG", or "$${EFG}",
that should not appear in a regex result. (This is where either numbered or named back- references come into play - and the reason I contemplated them as non-capture groups). As I understand it, a group becomes a non-capture group with this syntax (?:).

1) Can I say the % or $ is a non-capture group and reference that by number? Or do only capture groups get allocated numbers?

2) What is the order of the numbering, if you have ((A) (B) (C)). Is the outer group 1, A 2, B 3 C 4?

I have been look at named groups. Saw the syntax mentioned here

(?capturing text) to define a named group "name"

\k to backreference a named group "name"

3) Not sure if a non-capture group can be named in Java? Can someone elucidate?

More info here on non capture groups.
More info here on lookbehinds
Similar answer to a question here, but didn't quite get me what I wanted. Not sure if there is a back-reference issue in Java.
Similar question here. But could not get my head around the working version to apply to this.

I have used the exact same Java I had in my original question, except for:

...

ANSWER

Answered 2019-Nov-13 at 11:27

You may write a little bit more verbose regex with multiple capturing groups and only grab those that are not null, or plainly concatenate the found group values since there will be always only one of them initialized upon each match:

Source https://stackoverflow.com/questions/58827094

QUESTION

Java regex (java.util.regex). Search for dollar sign

Asked 2019-Nov-12 at 16:01

I have a search string. When it contains a dollar symbol, I want to capture all characters thereafter, but not include the dot, or a subsequent dollar symbol.. The latter would constitute a subsequent match. So for either of these search strings...:

...

ANSWER

Answered 2019-Nov-12 at 15:34

You may use

Source https://stackoverflow.com/questions/58821727

QUESTION

Java String replace - non-capturing group captures

Asked 2019-Aug-27 at 00:52

I have the following Java code:

...

ANSWER

Answered 2019-Aug-27 at 00:52

You can actually do what you wanted using capturing groups. Here it captures the part you want to keep and replaces the whole string. The $1 is a back reference to the capture group.

Source https://stackoverflow.com/questions/57664760

QUESTION

Extract address from business card with maximum probability

Asked 2019-Aug-26 at 09:44

I have an image of the business card. Using OCR I can convert this image to Text. Now I want to separate information and add into contact.

By regex, I can parse information like phone, email, website but failed to isolate address from it because format varies from card to card.

I am using firebase ml kit on a device in the Android platform. I am attaching the output of OCR.

An input image of a business card from google images

An output of OCR is

Line 1 = [larriS, Insurance]
Line 2 = [A, Legacy, of, Quality, Service]
Line 3 = [Wayne, Stansfield,, i, CLCS]
Line 4 = [1380, Rio, Rancho, Blvd, SE363]
Line 5 = [Rio, Rancho,, NM, 87124]
Line 6 = [CELL, 505.554.0510]
Line 7 = [PHONE, 505-818-9377]
Line 8 = [FAX, 888-753.4449]
Line 9 = [WayneJames@me.com]

Checked link1, link2 and link3 but failed to find address from regex so I tried to find it from the indirect way.

If it has a postal code then try to find address through that but postal code varies too. Find some hope Using multiple regex for a different country but it is not the solution can you please help me to find a way to extract it. And I understand that it will work 100% for all type of format available in the market, but I want to cover maximum.

Here is reference Application which can do this

CardCam Application Business Card Reader Free - Business Card Scanner

Card reading API but these all are paid

Abbyy CardCam API

...

ANSWER

Answered 2019-Aug-26 at 09:44

You extract info by each line and recognize some of them, in example Lines 6-8 are recognized and also you could define 9 as email.

So your only doubt about Lines 1-5.

You can't be 100% sure that if line fits or doesn't any of regexp because there is no 'protocol' how the address should be printed on the card so you could just assume that

The most likely address should be on lines 2+ because on the 1st line in most cases there will be a company name.
One of the parts of address should contain predefined values, e.g.
- Blvd
- st.
- street
- [XX] (state definition)
- Zip - regex for zip-code is quite simple
- other keywords
Most likely address will begin with Zip code.

So if you combine all of this into a single approach you'll get an algorithm that could predict if there is an address with possibility.

According to the assumptions above more likely that line 4 and 5 address line because - Line 4 starts from a number that looks like a zip code, - Line 5 contains somewhat like state

UPDATE

Complex solution could look like:

Source https://stackoverflow.com/questions/51807113

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

Vulnerabilities

No vulnerabilities reported

Install core-java

You can download it from GitHub.
You can use core-java 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 core-java 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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