Java Graphical user interface (GUI) notes (i) Introduction

First, the layout

1. Components

An object that is graphically displayed on the screen, interacting with the user, is called a component.

Components include: menus, labels, text boxes (password boxes), scroll bars, radio, check, buttons, and so on.

2. Containers

Components cannot be displayed independently, only the assembly can be placed in a container for normal display.

Arranging and distributing components in a container in a reasonable and orderly manner, including the position and size of the component, is called layout.

Second, layout manager

Each container has its own layout manager, and when a component within a container needs to change its properties, it needs to call the layout manager of the container in which its components reside.

The common layout managers in AWT are:

Boundary Layout Manager BorderLayout

Streaming layout manager FlowLayout

Grid Layout Manager GridLayout

Java Graphical user interface (GUI) notes (i) Introduction