Basic steps for NetBeans GUI programming

First, NetBeans design graphical user interface Step 1

1. Directly create JFrame class: Right-click "Package" | new | JFrame form

2. Redefine class name-form class Loginframe

Click Finish to open Design view

Code view

Second, the NetBeans design graphical user interface Step 2

1. Set form Properties

Select Form | Set the values of each property of a form in the Properties panel

Common Properties

Title: Set the caption bar of the form

Resizable: Set whether the form can be resized (depending on the situation)

Defaultcloseoperation: Set form close mode

2. Set the form layout

Right-click the form--Set layout--Select layout mode

The default is free layout

Third, the NetBeans design graphical user interface Step 3

1. Add components and set component properties and variable names

Example 1: Add a label JLabel

property settings

Text: Label text (another: Right-click Label-Edit text)

Font: Format for fonts

Foreground: Font Color

Change variable name (object name)

Right-click Label | Change the name of a variable

Label variable name: Lblusername

Example 2: Adding a text field

property settings

Columns: Number of initial columns of text field

Text: Literal field initial value

Editable: Whether you can edit

Change variable name (object name)

Right-click the Text field | Change the name of a variable

Text field variable name: txtUserName

Example 3: Add a button

property settings

Text: Button text

Font: Button text Format

Foreground: Font Color

Change variable name (object name)

Right-click Button | Change the name of a variable

Button variable Name: Btnlogin

Iv. NetBeans Design Graphical user interface Step 4

V. NetBeans design graphical user interface Step 5

1. Event handling (Take the button as an example)

Method 1: Right-click the button | Events | Action | Actionperformed

Method Two: Double-click the button

2. Write Event handling code