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Pattern of ellipses

import java.awt.Color; import java.io.FileOutputStream; import com.lowagie.text.Document; import com.lowagie.text.pdf.PatternColor; import com.lowagie.text.pdf.PdfContentByte; import com.lowagie.text.pdf.PdfPatternPainter; import com.lowagie.text.pdf.PdfWriter; public class MainClass {   public static void main(String[] args) throws Exception {     Document document = new Document();     PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));     document.open();     PdfContentByte cb = writer.getDirectContent();          PdfPatternPainter ellipse = cb.createPattern(15, 10, 20, 25);     ellipse.setColorFill(new Color(0xFF, 0xFF, 0x00));     ellipse.setColorStroke(new Color(0xFF, 0x00, 0x00));     ellipse.ellipse(2f, 2f, 13f, 8f);     ellipse.fillStroke();     PatternColor ellipses = new PatternColor(ellipse);     cb.setColorFill(ellipses);     cb.rectangle(144, 716, 72, 72);     cb.fillStroke();          document.close();   } }