java 显示打印对话框并打印

import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
import java.awt.print.PrinterException;
import java.awt.print.PrinterJob;

public class PrintableDemo1 implements Printable {
public int print(Graphics g, PageFormat pf, int pageIndex) {
if (pageIndex != 0)
return NO_SUCH_PAGE;
Graphics2D g2 = (Graphics2D) g;
g2.setFont(new Font("Serif", Font.PLAIN, 36));
g2.setPaint(Color.black);
g2.drawString("Java Source and Support!", 144, 144);
return PAGE_EXISTS;
}

public static void main(String[] args) {
PrinterJob pj = PrinterJob.getPrinterJob();
pj.setPrintable(new PrintableDemo1());
if (pj.printDialog()) {
try {
pj.print();
} catch (PrinterException e) {
System.out.println(e);
}
}
}

}