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Uses Of Chunk Object

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In this section, you will learn how we can change the background color and how we can create the subscript and superscript. iText api provides a setTextrise(float value1) and setBackground(Color color) method to set the position of text and to set the

Uses Of Chunk Object    

     

In this section, you will learn how we can change the background color  and how we can create  the subscript and superscript.  iText api provides a setTextrise(float value1) and setBackground(Color  color) method to set the position of text and to set the background. We can set  float value as positive or negative .Positive value is used for  Superscript and negative value used for subscript.  

Code Description:
The setTextRise(float f) method is used to set subscript and superscript. The more about setTextRise(float rise)  

setTextRise:

public Chunk setTextRise(float rise)is used to sets the text displacement relative to the baseline. Positive values rise the text, negative values lower the text. It can be used to implement sub/superscript. 

One more method to getTextRise is:

getTextRise
public float getTextRise()is used to gets the text displacement relatiev to the baseline.

The code of the program is given below:

import java.awt.Color;
import java.io.FileOutputStream;
import java.io.IOException;
import com.lowagie.text.Chunk;
import com.lowagie.text.Document;
import com.lowagie.text.DocumentException;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfWriter;
public class UsesOfChunks 
  {
public static void main(String[] args)throws Exception 
  {
  System.out.println("The Chunk object");
  Document document = new Document();
  PdfWriter.getInstance(document,
new FileOutputStream
("Chunks.pdf"));
  document.open();
  Chunk chunk = new Chunk("Rose India");
  chunk.setTextRise(6.0f);
  chunk.setBackground(new Color(0xFc0xDc0xAc));
  Chunk chunk3 = new Chunk(" roseindia.net ");
  Chunk chunk2 = new Chunk("rose");
  chunk2.setTextRise(-8.0f);
  chunk2.setUnderline(new Color(0xFF0x0c0x0c),
 
3.0f0.0f3.0f0.0f,PdfContentByte.LINE_CAP_ROUND);
  document.add(chunk);
  document.add(chunk2);
  document.add(chunk3);
  document.close();
  }
}

The output of the program is given below:

Download this example.

 

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Posted on: March 13, 2008

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