import java.awt.print.*;
import java.io.IOException;

public class PrinterTest {
     public static void main(String[] args) {

        BoxWorks bxw = new BoxWorks();
        String[] boxContents = new String[]{"1"};
        double pageLength = 1.0;
        double pageWidth = 7.7;

        try{
            boxContents = bxw.getBoxContents("asdasdasd");
            pageLength = (boxContents.length * 0.4) + 2.0; //this is an imprecise way of calculating page length
        }catch(IOException e){
                System.out.println("Could not read.");
                boxContents[0] = "Could not read box contents";
        }

        PrinterJob pj = PrinterJob.getPrinterJob();
        if(pj.printDialog()){

            PageFormat pf = pj.defaultPage();
            Paper paper = pf.getPaper();
            double width = fromCMToPPI(pageWidth);
            double height = fromCMToPPI(15);
            paper.setSize(width, height);
            paper.setImageableArea(
                                fromCMToPPI(0.25),
                                fromCMToPPI(0.5),
                                width - fromCMToPPI(0.35),
                                height - fromCMToPPI(1));
            System.out.println("Before- " + dump(paper));
            pf.setOrientation(PageFormat.PORTRAIT);
            pf.setPaper(paper);
            System.out.println("After- " + dump(paper));
            System.out.println("After- " + dump(pf));
            dump(pf);
            PageFormat validatePage = pj.validatePage(pf);
            System.out.println("Valid- " + dump(validatePage));
            //Book book = new Book();
            //book.append(new MyPrintable(), pf);
            //pj.setPageable(book);
            MyPrintable mprt = new MyPrintable();
            mprt.setContents(boxContents);
            pj.setPrintable(mprt, pf);
            try {
                 pj.print();
            } catch (PrinterException ex) {
                 ex.printStackTrace();
            }
        }
    }

     protected static double fromCMToPPI(double cm) {
          return toPPI(cm * 0.393700787);
     }

     protected static double toPPI(double inch) {
          return inch * 72d;
     }

     protected static String dump(Paper paper) {
          StringBuilder sb = new StringBuilder(64);
          sb.append(paper.getWidth()).append("x").append(paper.getHeight())
              .append("/").append(paper.getImageableX()).append("x").
              append(paper.getImageableY()).append(" - ").append(paper
         .getImageableWidth()).append("x").append(paper.getImageableHeight());
          return sb.toString();
     }

     protected static String dump(PageFormat pf){
          Paper paper = pf.getPaper();
          return dump(paper);
     }
}


import java.awt.print.*;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.Rectangle2D;
import java.awt.FontMetrics;
import java.util.Arrays;

public class MyPrintable implements Printable {
    private String[] contentsArray;

    @Override
    public int print(Graphics graphics, PageFormat pageFormat,
        int pageIndex) throws PrinterException {
        System.out.println(pageIndex);
        int result = NO_SUCH_PAGE;
        if (pageIndex < 1) {
            Graphics2D g2d = (Graphics2D) graphics;
            System.out.println("[Print] " + dump(pageFormat));
            double width = pageFormat.getImageableWidth();
            double height = pageFormat.getImageableHeight();
            g2d.translate((int) pageFormat.getImageableX(),
                (int) pageFormat.getImageableY());
            g2d.draw(new Rectangle2D.Double(1, 1, width - 1, height - 1));
            FontMetrics fm = g2d.getFontMetrics();

            int csI = 0; //contentsArray index
            while(csI < contentsArray.length){
                g2d.drawString(contentsArray[csI].toString(), 1, (csI + 1) * (fm.getAscent() +1)); //csI * (fm.getAscent() +1) - calculate where to position the new line
                csI++;
            }

            result = PAGE_EXISTS;
        }
        return result;
    }

    public void setContents(String[] boxContents){
        contentsArray = boxContents;
    }

    protected static String dump(Paper paper) {
        StringBuilder sb = new StringBuilder(64);
        sb.append(paper.getWidth()).append("x").append(paper.getHeight())
           .append("/").append(paper.getImageableX()).append("x").
           append(paper.getImageableY()).append(" - ").append(paper
       .getImageableWidth()).append("x").append(paper.getImageableHeight());
        return sb.toString();
    }

    protected static String dump(PageFormat pf) {
        Paper paper = pf.getPaper();
        return dump(paper);
    }
}



import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

public class BoxWorks{
    public String[] getBoxContents(String boxId) throws IOException{
        String file = "aa.txt";
        StringBuilder contents = new StringBuilder();
        String ln = "";

        FileReader fr = new FileReader(file);
        BufferedReader br = new BufferedReader(fr);

        try{
            while((ln = br.readLine()) !=null){
                contents.append(ln + "\r\n");
            }
        }catch(IOException e){
            System.out.println(e.getMessage());
        }
        br.close();

        return contents.toString().split("\r\n");
    }
}