JavaAwtSwing笔记之JComponentJLabel的setBorder(Border边框)用例

前言

setBorder(Border 边框) 实现自JComponent
java.awt.Insets用于获取和包装Border的上左下右, 但不能设置
javax.swing.border.Border 是一个接口
javax.swing.border.AbstractBorder 是 implements Border, Serializable 的抽象类
具体实现基本在在javax.swing.border包中, 如TitledBorder , MatteBorder
可以new
也可以通过 BorderFactory 的静态方法获得

用例 2205262241

package jcomponent;import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.border.BevelBorder;
import javax.swing.border.EtchedBorder;
import javax.swing.border.SoftBevelBorder;
import javax.swing.border.TitledBorder;public class SetBorder方法测试2205262241 {static Frame frame &＃61; new Frame("SetBorder方法测试2205262241");static JLabel jlb;static {frame.addWindowListener(new WindowAdapter() {&＃64;Override public void windowClosing(WindowEvent event) {frame.dispose();System.exit(0);}});frame.setBounds(100,50,1800,900);frame.setLayout(new GridLayout(0, 3, 5, 5));jlb &＃61; new JLabel("BorderFactory.createBevelBorder(BevelBorder.LOWERED, Color.red, Color.blue)"); frame.add(jlb);jlb.setBorder(BorderFactory.createBevelBorder(BevelBorder.LOWERED, Color.red, Color.blue));jlb &＃61; new JLabel("BorderFactory.createBevelBorder(BevelBorder.RAISED, Color.red, Color.blue)"); frame.add(jlb);jlb.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED, Color.red, Color.blue));jlb &＃61; new JLabel("""

BorderFactory.createTitledBorder(BorderFactory.createMatteBorder(5, 10, 15, 20, Color.DARK_GRAY), "如同Html的FieldSet", TitledBorder.CENTER, TitledBorder.BOTTOM, new Font("宋体",Font.BOLD,20), Color.RED)