Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (102)
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 (322)
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, ∼1445🔥, 0💬
Popular Posts:
The JSR 105 XML Digital Signature 1.0.1 FCS implementation provides an API and implementation that a...
JSP(tm) Standard Tag Library 1.0 implementation - Jakarta Taglibs hosts the Standard Taglib 1.0, an ...
How to read XML document with XML Schema validation from socket connections with the socket\DelayedI...
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime e...
How to download and install ojdbc5.jar for Oracle 11g R1? ojdbc5.jar for Oracle 11g R1 is a Java 5 J...