作业日历GUI布局求助：右侧应选paintComponent还是JTable？

Hey there! Let's break down which option makes sense for your assignment's calendar GUI, based on what you need:

Go with JTable if... #

• You're building a standard monthly grid calendar (7 columns for days of the week, 5-6 rows for weeks). JTable handles the grid layout automatically—no need to manually calculate x/y positions for every day cell.
• You want built-in functionality out of the box. It supports cell selection, editable cells (if your calendar needs that), and you can use custom TableCellRenderers to style cells (like graying out off-month days, highlighting today, or marking holidays).
• You want to avoid writing tons of custom drawing code. JTable takes care of borders, text alignment, and cell spacing for you—you just tweak the renderers to match your design.

Choose paintComponent if... #

• Your calendar has a non-standard, highly custom layout (think vertical agendas, irregular cell sizes, or unique graphics that don't fit a rigid grid). This method gives you full control over every pixel drawn on the component.
• Your assignment is focused on learning custom Swing painting. It's a great way to practice calculating coordinates, drawing shapes, and managing repaint events—just know you'll have to build all interactivity (like clicking dates) from scratch.

Quick Recommendation #

For most typical calendar UIs, JTable is the smarter pick. It's faster to implement, easier to maintain, and leverages Swing's existing component system to handle the heavy lifting of grid layout and basic interactions. You can still make it look exactly like your design with a few custom renderers.

Only opt for paintComponent if your calendar's design can't be adapted to a grid structure, or if your assignment specifically requires practicing custom painting.

内容的提问来源于stack exchange，提问作者codecode