Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (101)
JavaBeans (21)
JDBC (121)
JDK (426)
JSP (20)
Logging (108)
Mail (58)
Messaging (8)
Network (84)
PDF (97)
Report (7)
Scripting (84)
Security (32)
Server (121)
Servlet (26)
SOAP (24)
Testing (54)
Web (15)
XML (309)
Collections:
Other Resources:
Commons CLI API - Long Options Example
Where to get a Java example of managing long options with Commons CLI API?
✍: FYIcenter.com
Here is good Java example of managing long options with Commons CLI API, ShortOptionTest.java:
// Copyright (c) 2018 FYIcenter.com import org.apache.commons.cli.Options; import org.apache.commons.cli.CommandLineParser; import org.apache.commons.cli.CommandLine; import org.apache.commons.cli.DefaultParser; import org.apache.commons.cli.HelpFormatter; import org.apache.commons.cli.UnrecognizedOptionException; public class LongOptionTest { public static void main(String[] args) throws Exception { // Define a long option: --help -help -h Options options = new Options(); options.addOption("h", "help", false, "Print this help message"); try { // Parse options CommandLineParser parser = new DefaultParser(); CommandLine cmd = parser.parse(options, args); // Process options if (cmd.hasOption("help")) { help(options); } } catch (UnrecognizedOptionException e) { System.out.println("Invalid options: "+e.getOption()); help(options); } } public static void help(Options options) { // Print options HelpFormatter formatter = new HelpFormatter(); formatter.printHelp("LongOptionTest", options); } }
You can compile and run it with commons-cli-1.4.jar:
C:\fyicenter>javac -cp C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar LongOptionTest.java C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar LongOptionTest -h usage: LongOptionTest -h,--help Print this help message C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar LongOptionTest --help usage: LongOptionTest -h,--help Print this help message C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar LongOptionTest -help usage: LongOptionTest -h,--help Print this help message C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar LongOptionTest -helps Invalid options: -helps usage: LongOptionTest -h,--help Print this help message
⇒ Commons CLI API - Options with Arguments
⇐ Commons CLI API - Long Options
2020-12-15, 851🔥, 0💬
Popular Posts:
commons-collections4-4.2 -sources.jaris the source JAR file for Apache Commons Collections 4.2, whic...
XML Serializer, Release 2.7.1, allows you to write out XML, HTML etc. as a stream of characters from...
What JAR files are required to run sax\Writer.java provided in the Apache Xerces package? 1 JAR file...
Where to find answers to frequently asked questions on Downloading and Using JDK (Java Development K...
JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes: "C:\fyicenter\jdk-...