Building a Simple CLI Tool with Picocli

Sat, 20 Jun 2026 00:00:00 +0000

Picocli is a small Java library that makes it easy to build command-line tools. You write plain Java classes, add a few annotations, and Picocli handles parsing, help text, and error messages for you.

Why build a CLI tool?

Many useful tools run in the terminal:

Build scripts
Data migration utilities
Dev helpers (rename files, check configs, seed databases)
Internal admin tools

You can parse args manually with String[] args, but that gets messy quickly when you need flags, subcommands, defaults, and --help.

RIA USING ADOBE AIR AND FLEX - A tool

Sun, 20 Mar 2011 00:00:00 +0000

Hi,

I have developed a small standalone tool using adobe air. The tool is called “Budgeting tool”. This tool can be used to store day to day spendings for groceries or milk or whatever we spend on daily basis. You can make an entry daily. you can also see the reports for your spending and all signed in user’s as well.

I got the idea from our room. actually we are a few friends staying together. we use to buy milk packs curd , vegetables and groceries for our room,and we will make a note of it in a notepad. End of the month we will calculate the spendings and individual contribution on groceries and we will calculate how much each person has to pay.

Tools on Siva Kalidasan

Building a Simple CLI Tool with Picocli

Why build a CLI tool?

RIA USING ADOBE AIR AND FLEX - A tool