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 - Short Options Example
Where to get a Java example of managing short options with Commons CLI API?
✍: FYIcenter.com
Here is good Java example of managing short 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 ShortOptionTest {
public static void main(String[] args) throws Exception {
// Define a short option: -h
Options options = new Options();
options.addOption("h", "Print this help message");
try {
// Parse options
CommandLineParser parser = new DefaultParser();
CommandLine cmd = parser.parse(options, args);
// Process options
if (cmd.hasOption("h")) {
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("ShortOptionTest", 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 ShortOptionTest.java C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar ShortOptionTest -h usage: ShortOptionTest -h Print this help message C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar ShortOptionTest -help Invalid options: -help usage: ShortOptionTest -h Print this help message C:\fyicenter>java -cp .;C:\fyicenter\commons-cli-1.4\commons-cli-1.4.jar ShortOptionTest -? Invalid options: -? usage: ShortOptionTest -h Print this help message
⇒ Commons CLI API - Long Options
⇐ Commons CLI API - Short Options
2020-12-22, ∼1109🔥, 0💬
Popular Posts:
What JAR files are required to run dom\Counter.java provided in the Apache Xerces package? You can f...
What Is HttpComponents httpclient-4.2.2.jar? HttpComponents httpclient-4.2.2.jar is the JAR file for...
What Is poi-ooxml-5.2.3.jar? poi-ooxml-5.2.3.jar is one of the JAR files for Apache POI 5.2.3, which...
How to download and install xml-commons External Source Package? The source package contains Java so...
JRE 8 rt.jar is the JAR file for JRE 8 RT (Runtime) libraries. JRE (Java Runtime) 8 is the runtime e...