Transform string to a unicode

public class a

{

public static void main( String args[] )

{

System.out.println( getit( args[ 0 ] ) );

}

public static String getit( String what )

{

StringBuildersb = new StringBuilder();

for ( int i = 0; i < what.length(); i++ )

{

sb.append( String.format( "\\u%04x", ( int ) what.charAt( i ) ) );

}

return sb.toString();

}

}

java a 09aA

\u0030\u0039\u0061\u0041

java a 09aA獒

\u0030\u0039\u0061\u0041\u00e9\u00e1

BIJ001a at 2007-7-14 22:49:55 >

I want you to see the following code (part of my code):

while (class3.rs.next())

{

for ( int i = 1; i <= class3.rsmd.getColumnCount(); i++)

{

for ( int j = 0; j < class3.rs.getString(i).length(); j++ )

{

sb.append( String.format( "\\u%04x", ( int ) rs.getString(i).charAt( j ) ) );

}

String w=sb+"";

PdfPCell cell = new PdfPCell(new Phrase(w,f2));

table.addCell(cell);

}

}

document.add(table);

document.close();

Now, if you noticed these classes or objects :

PdfPCell (class), table (object ), document (object)

I used these classes from free library called (iText) if you know it.

to help me store data that i retrieve it from database in a PDF file.

my problem is when I used the above code as it is, it will stores the data that I retrieve it from database as "\u0030\u0039\u0061\u0041"

and it didn't give me the equivalent word for this unicode.

but if I changed the variable (w) in the following statement from the code:

PdfPCell cell = new PdfPCell(new Phrase(w,f2));

and put this string "\u0030\u0039\u0061\u0041" instead of it

it will store the equivalent word for this unicode in the PDF file.

I don't know what's the problem?

and why it do it like that?

second problem is when I retreive the data from the database it gave me this error (java.lang.NullPointerException)

I think it is because the size of data (rows)

because whenn I retreive one row it didn't give me this error.

so, what is wrong here?

and what I have to do?

help me please, it's urgent

ahd292000a at 2007-7-14 22:49:55 >

your right that I asked how to turn a String into UNICODE

and if you noticed my code you will find that I used the code that turn a string retrieved from database into unicode then store in a PDF file,but my problem here is when I tried to store these data in the PDF File, it stored as it is, I mean it stored the unicode string as it is (string) not convert it to the equivalent character as in the following example.

I used this way (turn a String into UNICODE) because I found an example of how to put data written in a language other than english in a PDF file.

this is the example:

import java.awt.Color;

import java.io.FileOutputStream;

import com.lowagie.text.Chunk;

import com.lowagie.text.Document;

import com.lowagie.text.Element;

import com.lowagie.text.Font;

import com.lowagie.text.PageSize;

import com.lowagie.text.Phrase;

import com.lowagie.text.pdf.BaseFont;

import com.lowagie.text.pdf.ColumnText;

import com.lowagie.text.pdf.PdfContentByte;

import com.lowagie.text.pdf.PdfPCell;

import com.lowagie.text.pdf.PdfPTable;

import com.lowagie.text.pdf.PdfWriter;

/**

* Writing RTL text such as Arabic or Hebrew.

*/

public class RightToLeft {

/**

* Writing RTL text such as Arabic or Hebrew.

* @param args no arguments needed

*/

public static void main(String[] args) {

try {

// step 1

Document document = new Document(PageSize.A4, 50, 50, 50, 50);

// step 2

PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream("righttoleft.pdf"));

// step 3

document.open();

// step 4

PdfContentByte cb = writer.getDirectContent();

BaseFont bf = BaseFont.createFont("c:\\windows\\fonts\\times.ttf", BaseFont.IDENTITY_H, true);

Font f2 = new Font(bf, 24, Font.NORMAL, Color.BLUE);

float llx = 100;

float lly = 100;

float urx = 500;

float ury = 800;

ColumnText ct = new ColumnText(cb);

ct.setSimpleColumn(llx, lly, urx, ury, 24, Element.ALIGN_LEFT);

ct.setSpaceCharRatio(PdfWriter.NO_SPACE_CHAR_RATIO);

ct.setLeading(0, 1);

ct.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);

ct.setAlignment(Element.ALIGN_CENTER);

ct.addText(new Chunk(ar1, new Font(bf, 16)));

ct.addText(new Chunk(ar2, new Font(bf, 16, Font.NORMAL, Color.red)));

ct.go();

ct.setAlignment(Element.ALIGN_JUSTIFIED);

ct.addText(new Chunk(ar3, new Font(bf, 12)));

ct.go();

ct.setAlignment(Element.ALIGN_CENTER);

ct.addText(new Chunk(ar4, new Font(bf, 14)));

ct.go();

ct.setSpaceCharRatio(PdfWriter.SPACE_CHAR_RATIO_DEFAULT);

ct.setAlignment(Element.ALIGN_CENTER);

ct.addText(new Chunk("\n\n\n", new Font(bf, 16)));

ct.addText(new Chunk(he1, new Font(bf, 16)));

ct.addText(new Chunk(he2, new Font(bf, 16, Font.NORMAL, Color.red)));

ct.go();

ct.setAlignment(Element.ALIGN_JUSTIFIED);

ct.addText(new Chunk(he3, new Font(bf, 12)));

ct.go();

ct.setAlignment(Element.ALIGN_CENTER);

ct.addText(new Chunk(he4, new Font(bf, 14)));

ct.go();

document.newPage();

String atext = "\u062a\u0635\u0628\u062d ";

PdfPTable table = new PdfPTable(5);

table.setWidthPercentage(100);

table.setRunDirection(PdfWriter.RUN_DIRECTION_NO_BIDI);

for (int k = 0; k < 5; ++k) {

PdfPCell cell = new PdfPCell(new Phrase(10, atext + k, f2));

if (k == 2) {

cell.setColspan(2);

++k;

}

table.addCell(cell);

}

table.setRunDirection(PdfWriter.RUN_DIRECTION_LTR);

for (int k = 0; k < 5; ++k) {

PdfPCell cell = new PdfPCell(new Phrase(10, atext + k, f2));

if (k == 2) {

cell.setColspan(2);

++k;

}

table.addCell(cell);

}

table.setRunDirection(PdfWriter.RUN_DIRECTION_RTL);

for (int k = 0; k < 5; ++k) {

PdfPCell cell = new PdfPCell(new Phrase(10, atext + k, f2));

if (k == 2) {

cell.setColspan(2);

++k;

}

table.addCell(cell);

}

document.add(table);

// step 5

document.close();

}

catch (Exception e) {

e.printStackTrace();

}

}

/** arabic text */

public static String ar1 = "\u0623\u0648\u0631\u0648\u0628\u0627, \u0628\u0631\u0645\u062c\u064a\u0627\u062a \u0627\u0644\u062d\u0627\u0633\u0648\u0628 + \u0627\u0646\u062a\u0631\u0646\u064a\u062a :\n\n";

/** arabic text */

public static String ar2 = "\u062a\u0635\u0628\u062d \u0639\u0627\u0644\u0645\u064a\u0627 \u0645\u0639 \u064a\u0648\u0646\u064a\u0643\u0648\u062f\n\n";

/** arabic text */

public static String ar3 = "\u062a\u0633\u062c\u0651\u0644 \u0627\u0644\u0622\u0646 \u0644\u062d\u0636\u0648\u0631 \u0627\u0644\u0645\u0624\u062a\u0645\u0631 \u0627\u0644\u062f\u0648\u0644\u064a " +

"\u0627\u0644\u0639\u0627\u0634\u0631 \u0644\u064a\u0648\u0646\u064a\u0643\u0648\u062f, \u0627\u0644\u0630\u064a \u0633\u064a\u0639\u0642\u062f \u0641\u064a 10-12 \u0622\u0630\u0627\u0631 1997 " +

"\u0628\u0645\u062f\u064a\u0646\u0629 \u0645\u0627\u064a\u0646\u062a\u0633, \u0623\u0644\u0645\u0627\u0646\u064a\u0627. \u0648\u0633\u064a\u062c\u0645\u0639 \u0627\u0644\u0645\u0624\u062a\u0645\u0631 " +

"\u0628\u064a\u0646 \u062e\u0628\u0631\u0627\u0621 \u0645\u0646 \u0643\u0627\u0641\u0629 \u0642\u0637\u0627\u0639\u0627\u062a \u0627\u0644\u0635\u0646\u0627\u0639\u0629 \u0639\u0644\u0649 " +

"\u0627\u0644\u0634\u0628\u0643\u0629 \u0627\u0644\u0639\u0627\u0644\u0645\u064a\u0629 \u0627\u0646\u062a\u0631\u0646\u064a\u062a \u0648\u064a\u0648\u0646\u064a\u0643\u0648\u062f, \u062d\u064a\u062b " +

"\u0633\u062a\u062a\u0645, \u0639\u0644\u0649 \u0627\u0644\u0635\u0639\u064a\u062f\u064a\u0646 \u0627\u0644\u062f\u0648\u0644\u064a \u0648\u0627\u0644\u0645\u062d\u0644\u064a \u0639\u0644\u0649 " +

"\u062d\u062f \u0633\u0648\u0627\u0621 \u0645\u0646\u0627\u0642\u0634\u0629 \u0633\u0628\u0644 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u064a\u0648\u0646\u0643\u0648\u062f \u0641\u064a " +

"\u0627\u0644\u0646\u0638\u0645 \u0627\u0644\u0642\u0627\u0626\u0645\u0629 \u0648\u0641\u064a\u0645\u0627 \u064a\u062e\u0635 \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a " +

"\u0627\u0644\u062d\u0627\u0633\u0648\u0628\u064a\u0629, \u0627\u0644\u062e\u0637\u0648\u0637, \u062a\u0635\u0645\u064a\u0645 \u0627\u0644\u0646\u0635\u0648\u0635 \u0648\u0627\u0644\u062d\u0648\u0633\u0628\u0629 " +

"\u0645\u062a\u0639\u062f\u062f\u0629 \u0627\u0644\u0644\u063a\u0627\u062a.\n\n";

/** arabic text */

public static String ar4 = "\u0639\u0646\u062f\u0645\u0627 \u064a\u0631\u064a\u062f \u0627\u0644\u0639\u0627\u0644\u0645 \u0623\u0646 \u064a\u062a\u0643\u0644\u0651\u0645, \u0641\u0647\u0648 \u064a\u062a\u062d\u062f\u0651\u062b \u0628\u0644\u063a\u0629 \u064a\u0648\u0646\u064a\u0643\u0648\u062f\n\n";

/** hebrew text */

public static String he1 = "\u05d0\u05d9\u05e8\u05d5\u05e4\u05d4, \u05ea\u05d5\u05db\u05e0\u05d4 \u05d5\u05d4\u05d0\u05d9\u05e0\u05d8\u05e8\u05e0\u05d8:\n\n";

/** hebrew text */

public static String he2 = "Unicode \u05d9\u05d5\u05e6\u05d0 \u05dc\u05e9\u05d5\u05e7 \u05d4\u05e2\u05d5\u05dc\u05de\u05d9\n\n";

/** hebrew text */

public static String he3 = "\u05d4\u05d9\u05e8\u05e9\u05de\u05d5 \u05db\u05e2\u05ea \u05dc\u05db\u05e0\u05e1 Unicode \u05d4\u05d1\u05d9\u05e0\u05dc\u05d0\u05d5\u05de\u05d9 \u05d4\u05e2\u05e9\u05d9\u05e8\u05d9, \u05e9\u05d9\u05d9\u05e2\u05e8\u05da \u05d1\u05d9\u05df \u05d4\u05ea\u05d0\u05e8\u05d9\u05db\u05d9\u05dd " +

"12\u05be10 \u05d1\u05de\u05e8\u05e5 1997, \u05d1\u05de\u05d9\u05d9\u05e0\u05e5 \u05e9\u05d1\u05d2\u05e8\u05de\u05e0\u05d9\u05d4. \u05d1\u05db\u05e0\u05e1 \u05d9\u05e9\u05ea\u05ea\u05e4\u05d5 \u05de\u05d5\u05de\u05d7\u05d9\u05dd \u05de\u05db\u05dc \u05e2\u05e0\u05e4\u05d9 \u05d4\u05ea\u05e2\u05e9\u05d9\u05d9\u05d4 " +

"\u05d1\u05e0\u05d5\u05e9\u05d0 \u05d4\u05d0\u05d9\u05e0\u05d8\u05e8\u05e0\u05d8 \u05d4\u05e2\u05d5\u05dc\u05de\u05d9 \u05d5\u05d4\u05beUnicode, \u05d1\u05d4\u05ea\u05d0\u05de\u05d4 \u05dc\u05e9\u05d5\u05e7 \u05d4\u05d1\u05d9\u05e0\u05dc\u05d0\u05d5\u05de\u05d9 \u05d5\u05d4\u05de\u05e7\u05d5\u05de\u05d9, " +

"\u05d1\u05d9\u05d9\u05e9\u05d5\u05dd Unicode \u05d1\u05de\u05e2\u05e8\u05db\u05d5\u05ea \u05d4\u05e4\u05e2\u05dc\u05d4 \u05d5\u05d1\u05d9\u05d9\u05e9\u05d5\u05de\u05d9\u05dd, \u05d1\u05d2\u05d5\u05e4\u05e0\u05d9\u05dd, \u05d1\u05e4\u05e8\u05d9\u05e1\u05ea \u05d8\u05e7\u05e1\u05d8 \u05d5\u05d1\u05de\u05d7\u05e9\u05d5\u05d1 " +

"\u05e8\u05d1\u05be\u05dc\u05e9\u05d5\u05e0\u05d9.\n\n";

/** hebrew text */

public static String he4 = "\u05db\u05d0\u05e9\u05e8 \u05d4\u05e2\u05d5\u05dc\u05dd \u05e8\u05d5\u05e6\u05d4 \u05dc\u05d3\u05d1\u05e8, \u05d4\u05d5\u05d0 \u05de\u05d3\u05d1\u05e8 \u05d1\u05beUnicode\n\n";

}

if you noticed this code, you will find that the data that he want to put it in a PDF file,he already know its unicode as in (ar1,ar2,ar3,.....) and when you run this code you will get a PDF file with an Arabic and hebrew language.

that means he can convert the unicode to the equivalent character.

but in my code that I put in the previous post does not do that.

and this is my problem again:

if you noticed these classes or objects :

PdfPCell (class), table (object ), document (object)

I used these classes from free library called (iText) if you know it.

to help me store data that i retrieve it from database in a PDF file.

my problem is when I used the above code as it is, it will stores the data that I retrieve it from database as "\u0030\u0039\u0061\u0041"

and it didn't give me the equivalent word for this unicode.

but if I changed the variable (w) in the following statement from the code:

PdfPCell cell = new PdfPCell(new Phrase(w,f2));

and put this string "\u0030\u0039\u0061\u0041" instead of it

it will store the equivalent word for this unicode in the PDF file.

what can I do now?

and what is the problem in my code?

is there any improvments can I do it ?

please help

Message was edited by:

ahd292000

ahd292000a at 2007-7-14 22:49:55 >

that day i just asked a question about

"Transform string to a unicode in JDK 1.42 "

why somebody typed "Shame" word ?

that is not significance at all.

/**

*@author LI

*@exception

*@param String strHouben

*@return String

*@throws UnsupportedEncodingException

*@since 1.42

*@version 2007/6/29

*/

private static String translateToUnicode(String strHouben) {

String strtemp = new String();

try {

OutputStreamWriter out = new OutputStreamWriter( new ByteArrayOutputStream() );

String unicodebyte=new String(strHouben.getBytes(out.getEncoding()),out.getEncoding());

char []a=unicodebyte.toCharArray();

StringBuffer buffer = new StringBuffer();

for(int m=0;m<a.length;m++){

buffer.append("\\u"+Integer.toHexString(a[m]));

}

strtemp= buffer.toString();

}

catch( Exception e ) {

e.printStackTrace();

}

return strtemp;

}

Message was edited by:

m7777777bill>

m7777777billa at 2007-7-14 22:49:55 >