作者：幸福的xinwangnanfei_736 | 来源：互联网 | 2024-11-12 13:48
JComponentJLabel的setBorder前言用例2205262241前言setBorder(Border边框)实现自JComponentjava.awt.Insets
JComponent JLabel 的 setBorder
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.createEmptyBorder(60, 200, 0, 0)
EmptyBorder不可见,但缩小了文字区域
可以用于移动文字
"""); frame.add(jlb);jlb.setBorder(BorderFactory.createEmptyBorder(60, 200, 0, 0)); jlb.setBackground(Color.yellow); jlb.setOpaque(true);jlb &＃61; new JLabel("BorderFactory.createEtchedBorder(EtchedBorder.LOWERED, Color.YELLOW, Color.GREEN)"); frame.add(jlb);jlb.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.LOWERED, Color.YELLOW, Color.GREEN));jlb &＃61; new JLabel("BorderFactory.createEtchedBorder(EtchedBorder.RAISED, Color.YELLOW, Color.GREEN)"); frame.add(jlb);jlb.setBorder(BorderFactory.createEtchedBorder(EtchedBorder.RAISED, Color.YELLOW, Color.GREEN));jlb &＃61; new JLabel("BorderFactory.createLineBorder(Color.BLACK, 30, true)"); frame.add(jlb);jlb.setBorder(BorderFactory.createLineBorder(Color.BLACK, 30, true)); jlb &＃61; new JLabel("BorderFactory.createLineBorder(Color.BLACK, 30, false)"); frame.add(jlb);jlb.setBorder(BorderFactory.createLineBorder(Color.BLACK, 30, false));jlb &＃61; new JLabel("BorderFactory.createLoweredBevelBorder()"); frame.add(jlb);jlb.setBorder(BorderFactory.createLoweredBevelBorder());jlb &＃61; new JLabel("BorderFactory.createLoweredSoftBevelBorder()"); frame.add(jlb);jlb.setBorder(BorderFactory.createLoweredSoftBevelBorder());jlb &＃61; new JLabel("BorderFactory.createRaisedBevelBorder()"); frame.add(jlb);jlb.setBorder(BorderFactory.createRaisedBevelBorder());jlb &＃61; new JLabel("BorderFactory.createRaisedSoftBevelBorder()"); frame.add(jlb);jlb.setBorder(BorderFactory.createRaisedSoftBevelBorder());jlb &＃61; new JLabel("BorderFactory.createSoftBevelBorder(SoftBevelBorder.LOWERED, Color.ORANGE, Color.CYAN)"); frame.add(jlb);jlb.setBorder(BorderFactory.createSoftBevelBorder(SoftBevelBorder.LOWERED, Color.ORANGE, Color.CYAN));jlb &＃61; new JLabel("BorderFactory.createSoftBevelBorder(SoftBevelBorder.RAISED, Color.ORANGE, Color.CYAN)"); frame.add(jlb);jlb.setBorder(BorderFactory.createSoftBevelBorder(SoftBevelBorder.RAISED, Color.ORANGE, Color.CYAN));jlb &＃61; new JLabel("BorderFactory.createCompoundBorder()"); frame.add(jlb);jlb.setBorder(BorderFactory.createCompoundBorder());jlb &＃61; new JLabel("BorderFactory.createMatteBorder(10, 20, 30, 40, Color.BLACK)"); frame.add(jlb);jlb.setBorder(BorderFactory.createMatteBorder(10, 20, 30, 40, Color.BLACK));jlb &＃61; new JLabel("BorderFactory.createTitledBorder(\"如同Html的FieldSet\")"); frame.add(jlb);jlb.setBorder(BorderFactory.createTitledBorder("如同Html的FieldSet"));jlb &＃61; new JLabel("BorderFactory.createTitledBorder(BorderFactory.createMatteBorder(10, 20, 30, 40, Color.BLACK) , \"如同Html的FieldSet\")"); frame.add(jlb);jlb.setBorder(BorderFactory.createTitledBorder(BorderFactory.createMatteBorder(10, 20, 30, 40, Color.BLACK) , "如同Html的FieldSet"));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)"""); frame.add(jlb);jlb.setBorder(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));}public static void main(String...arguments) {frame.setVisible(true);}}
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