[Java Introduction] Complete guide to creating a ToDo list | Developing a simple task management app with GUI

programming

"I started learning Java, but it's hard to make a working app."
"I want to create a tool that can manage things from a list, but I don't know where to start."
If you have such concerns,Creating a ToDo list app.

In this article,A detailed explanation of how to easily create a ToDo list in Java with a GUII will.
Create a screen using the Swing library and complete an app that can input, delete, and display a list.I will let you.

With easy-to-make configurations and code-based explanations, this app helps Java beginners create their first practical application.I will!

Why create a to-do list in Java?

Why are to-do lists great for learning?

Conclusion: Because you can learn all the basic operations such as input, saving, displaying, and deleting.

People who have just started studying Java often wonder what kind of app they should create.
To-Do lists are perfect for beginners because:

  • Learn how to receive data from input forms
  • List display allows you to understand how to handle arrays and lists.
  • You can get used to event handling by deleting and completing
  • You can create something practical even with a simple GUI

In this way, the ToDo listA great learning material for learning the basics of Java naturallyThat's it.

What configuration is required for a GUI app?

A simple design using Swing

Conclusion: All you need is a text input field, an add button, a list display, and a delete button.

The components of a to-do list app are:

  • JTextField：Enter what you want to do
  • JButton (Add):Add to list
  • JList or DefaultListModel: List view
  • JButton (deleted): Delete the selected item

The configuration image is as follows:

1

Basic features of a to-do list app

Flow from input → addition → deletion

Bottom line: use buttons and event listeners to dynamically update the list.

Relationship between user actions and processing:

  • Input → JTextField.getText() Get it at
  • Press button → ActionListener Event handling with
  • Add to list → DefaultListModel.addElement()
  • Delete list → model.remove(index)

When you understand this flow,This can be applied to any GUI application.

Java code to implement a to-do list

Completed code with GUI that can be copied and pasted

1
400, 300 20 ); } ); } } 1

File configuration and execution procedure

Required files and preparation

  • ToDoApp.java(The code above)

Here's how to do it:

1

If Java is installed,Ready to runis.

Summary: The power you can gain from developing a ToDo list

Here's what you'll learn in this article:

  • Java GUI design (How to use Swing)
  • Event handling (ActionListener)
  • Not an arrayDefaultListModelDynamic list management using
  • Steps and structure for creating a working app
Copied title and URL