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📄 test.java

📁 swing 教程,与大家分享一下,哈哈,希望大家多多指教
💻 JAVA
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import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

public class Test extends JApplet {
	public void init() {
		JPanel jpanel = new AllBordersPanel();
		getContentPane().add(jpanel, BorderLayout.CENTER);
	}
}
class AllBordersPanel extends JPanel {
	public AllBordersPanel() {
		JPanel 	bl = new PanelWithTitle("Bevel Lowered"),
				br = new PanelWithTitle("Bevel Raised"),
				c = new PanelWithTitle("Compound"),
				l = new PanelWithTitle("Line"),
				m = new PanelWithTitle("Matte"),
				e = new PanelWithEmptyBorder("Empty"),
				t = new PanelWithTitle("Titled"),
				sbr = new PanelWithTitle("Soft Bevel Raised"),
				sbl = new PanelWithTitle("Soft Bevel Lowered"),
				el = new PanelWithTitle("Etched Lowered"),
				er = new PanelWithTitle("Etched Raised");

		setLayout(new GridLayout(4,3,2,2));

		ImageIcon icon = new ImageIcon("smiley.gif");

		Dimension iconsz = new Dimension(icon.getIconWidth(),
										icon.getIconHeight());

		bl.setBorder(BorderFactory.createLoweredBevelBorder());
		br.setBorder(BorderFactory.createRaisedBevelBorder());
		sbr.setBorder(new SoftBevelBorder(BevelBorder.RAISED));
		sbl.setBorder(new SoftBevelBorder(BevelBorder.LOWERED));
		t.setBorder(BorderFactory.createTitledBorder("Titled"));
		l.setBorder(
			BorderFactory.createLineBorder(Color.black,2));

		c.setBorder(
			BorderFactory.createCompoundBorder(
				BorderFactory.createCompoundBorder(
					BorderFactory.createLineBorder(Color.gray,10),
					BorderFactory.createRaisedBevelBorder()),
				BorderFactory.createCompoundBorder(
					BorderFactory.createLineBorder(Color.blue,5),
					BorderFactory.createLoweredBevelBorder())));

		el.setBorder(BorderFactory.createEtchedBorder(
						getBackground().brighter(),
						getBackground().darker()));
			
		er.setBorder(BorderFactory.createEtchedBorder(
						getBackground().darker(),
						getBackground().brighter()));

		m.setBorder(BorderFactory.createMatteBorder(
							iconsz.height, iconsz.width,
							iconsz.height, iconsz.width,
							icon));

		add(br); add(bl); add(sbr);
		add(sbl); add(c); add(el);
		add(er); add(e); add(l);
		add(m); add(t);
	}
}
class PanelWithTitle extends JPanel {
	private String title;

	public PanelWithTitle(String title) {
		this.title = title;
	}
	public void paintComponent(Graphics g) {
		FontMetrics fm = g.getFontMetrics();
		Dimension size = getSize();
		int titleW = fm.stringWidth(title);

		g.setColor(Color.black);
		g.drawString(title, size.width/2 - titleW/2, 
							size.height/2);
	}
}
class PanelWithEmptyBorder extends PanelWithTitle {
	public PanelWithEmptyBorder(String title) {
		super(title);
		setBorder(BorderFactory.createEmptyBorder(10,10,10,10));
	}
	public void paintComponent(Graphics g) {
		Dimension size = getSize();
		Insets insets = getInsets();
		g.setColor(Color.red);
		g.fillRect(insets.left,insets.top,
					size.width-2*insets.left,
					size.height-2*insets.top);

		super.paintComponent(g);
	}
}

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