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import java.awt.Container;
import java.awt.GridLayout;
import java.awt.Image;
import java.awt.Toolkit;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class LabelJarSample {
public static void main(String args[]) {
String title = "JLabel Sample";
JFrame frame = new JFrame(title);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container content = frame.getContentPane();
content.setLayout(new GridLayout(2, 2));
JLabel label1 = new JLabel("Text Label");
content.add(label1);
Image warnImage = ImageLoader.getImage(LabelJarSample.class, "Warn.gif");
Icon warnIcon = new ImageIcon(warnImage);
JLabel label2 = new JLabel(warnIcon);
content.add(label2);
JLabel label3 = new JLabel("Warning", warnIcon, JLabel.CENTER);
content.add(label3);
String htmlLabel = "<html><sup>HTML</sup> <sub><em>Label</em></sub><br>"
+ "<font color=\"#FF0080\"><u>Multi-line</u></font>";
JLabel label4 = new JLabel(htmlLabel);
content.add(label4);
frame.setSize(300, 200);
frame.setVisible(true);
}
}
final class ImageLoader {
private ImageLoader() {
}
public static Image getImage(Class relativeClass, String filename) {
Image returnValue = null;
InputStream is = relativeClass.getResourceAsStream(filename);
if (is != null) {
BufferedInputStream bis = new BufferedInputStream(is);
ByteArrayOutputStream baos = new ByteArrayOutputStream();
try {
int ch;
while ((ch = bis.read()) != -1) {
baos.write(ch);
}
returnValue = Toolkit.getDefaultToolkit().createImage(
baos.toByteArray());
} catch (IOException exception) {
System.err.println("Error loading: " + filename);
}
}
return returnValue;
}
}
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