Starting a string of numbers with zero

This may be a really dumb question, and I apologize if it is, but how do I start a string of numbers in a cell with zero. Each time I try the zero is deleted automatically when I go to the next cell. Thanks for any tips.

If you set the format of the cell to "Text", this will let you enter a string like:
01234
No additional effort is required (like ="01234")
And, if your intent is that this is really a numeric quantity rather than a string composed of digits, Numbers will let you refer to this cell as if it were a number. For instance if this number in A1, then in B1 you enter =A1+1, the result will be the number quantity 124.

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Payables: Cannot start a Payment Document number with Zero

Hi all,
I have a bit of an unusual situation. One of my users wants to issue cheques from a book where the serial starts with 0 (015698, 015699 etc). However, Oracle Payables automatically deletes the 0 at the top of the string and leaves only rest of the integers in the cheque number field. This creates a problem in printing the payment voucher since the voucher will show the paid cheque number without the zero at the front.
Any suggestions as to how i can overcome this?
Miranga

Hi Miranga,
Note 1361688.1, R12: Payables Check Number Not Accepting Leading0. Ex: 060078, discusses this issue with the note that:
"This is a normal behavior, There is no chance to have leading 0 in the check number, The check number in the AP_CHECKS_ALL table is a numeric field, so we can't have padded zeros."
For reconciliation, the leading check numbers are removed so matching can occur, assuming you have patch 12976660 applied.
R12.0.X: ceabrmab.pls 120.62.12010000.32
R12.1.X: ceabrmab.pls 120.56.12000000.40
Regards,
Cheryl

Can i format numbers with spry?

Can i format numbers for display with spry? I've got a number
field and want to put commas in for thousand seperators and also
need to pad some numbers with zeros....kinda like numberformat()
really in CF, else i guess I have to do it with in my data
preparation,
thanks,
john.

Hi John,
So if I were going to make this work with your XML, I would
create a custom column on the fly after the data was loaded. This
custom column would strip the formatting and convert the resulting
numbers into real numbers. Also, for any rows that had nothing, it
would stick a zero in this custom column.
Then when it comes time for sorting, you sort on the custom
column instead of the formatted one.
Look at this example. It shows you how you can create custom
columns:
http://labs.adobe.com/technologies/spry/samples/data_region/CustomColumnsSample.html
--== Kin ==--

What about numbers that start with Zero

When I enter numbers that start with Zero (EX: 08794) in a cell, Numbers automatically drops the zero. I WANT THE ZERO. How can I do that. I've tried changing the formula to numerals and automatic. Same thing.

Numbers starting with zeros are usually "labels" rather than "numbers" used in further calculations. If that's the case with yours, the easiest solution is to set the format of the cells where the 'numbers' will be inserted to Text.
An alternate, useful only if all of the 'numbers' are the same length (eg. five digit zip codes) is to set a Custom format for the cell(s).
Use the Cell Format Inspector ("42" button in the Inspector) to apply either of these settings.
Regards,
Barry

Starting a phone number with zero

Hey,
I am using jdeveloper 11g release 2,
I am using a field to insert phone numbers
in the format 0112054578
once i change the field the zero is remove.
I want to save the phone as it is in the database starting by zero.
Regards
steve kalenga

use string attribute as timo suggested,write validation rule on entity attribute level to start with zero
http://docs.oracle.com/cd/E16162_01/web.1112/e16182/bcrules.htm

RSA decryption Error: Data must start with zero

Because of some reasons, I tried to use RSA as a block cipher to encrypt/decrypt a large file. When I debug my program, there some errors are shown as below:
javax.crypto.BadPaddingException: Data must start with zero
     at sun.security.rsa.RSAPadding.unpadV15(Unknown Source)
     at sun.security.rsa.RSAPadding.unpad(Unknown Source)
     at com.sun.crypto.provider.RSACipher.doFinal(RSACipher.java:356)
     at com.sun.crypto.provider.RSACipher.engineDoFinal(RSACipher.java:394)
     at javax.crypto.Cipher.doFinal(Cipher.java:2299)
     at RSA.RRSSA.main(RRSSA.java:114)
From breakpoint, I think the problem is the decrypt operation, and Cipher.doFinal() can not be operated correctly.
I searched this problem from google, many people met the same problem with me, but most of them didn't got an answer.
The source code is :
Key generation:
package RSA;
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
import java.security.KeyPair;
import java.security.KeyPairGenerator;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.util.logging.Level;
import java.util.logging.Logger;
public class GenKey {
      * @param args
                 * @author tang
     public static void main(String[] args) {
          // TODO Auto-generated method stub
             try {
                  KeyPairGenerator KPG = KeyPairGenerator.getInstance("RSA");
                  KPG.initialize(1024);
                  KeyPair KP=KPG.genKeyPair();
                  PublicKey pbKey=KP.getPublic();
                  PrivateKey prKey=KP.getPrivate();
                  //byte[] publickey = decryptBASE64(pbKey);
                  //save public key
                  FileOutputStream out=new FileOutputStream("RSAPublic.dat");
                  ObjectOutputStream fileOut=new ObjectOutputStream(out);
                  fileOut.writeObject(pbKey);
                  //save private key
                      FileOutputStream outPrivate=new FileOutputStream("RSAPrivate.dat");
                  ObjectOutputStream privateOut=new ObjectOutputStream(outPrivate);
                             privateOut.writeObject(prKey)
     }Encrypte / Decrypt
package RSA;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.ObjectInputStream;
import java.security.Key;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.crypto.Cipher;
//import sun.misc.BASE64Decoder;
//import sun.misc.BASE64Encoder;
public class RRSSA {
      * @param args
     public static void main(String[] argv) {
          // TODO Auto-generated method stub
            //File used to encrypt/decrypt
             String dataFileName = argv[0];
             //encrypt/decrypt: operation mode
             String opMode = argv[1];
             String keyFileName = null;
             //Key file
             if (opMode.equalsIgnoreCase("encrypt")) {
             keyFileName = "RSAPublic.dat";
             } else {
             keyFileName = "RSAPrivate.dat";
             try {
             FileInputStream keyFIS = new FileInputStream(keyFileName);
             ObjectInputStream OIS = new ObjectInputStream(keyFIS);
             Key key = (Key) OIS.readObject();
             Cipher cp = Cipher.getInstance("RSA/ECB/PKCS1Padding");//
             if (opMode.equalsIgnoreCase("encrypt")) {
             cp.init(Cipher.ENCRYPT_MODE, key);
             } else if (opMode.equalsIgnoreCase("decrypt")) {
             cp.init(Cipher.DECRYPT_MODE, key);
             } else {
             return;
             FileInputStream dataFIS = new FileInputStream(dataFileName);
             int size = dataFIS.available();
             byte[] encryptByte = new byte[size];
             dataFIS.read(encryptByte);
             if (opMode.equalsIgnoreCase("encrypt")) {
             FileOutputStream FOS = new FileOutputStream("cipher.txt");
             //RSA Block size
             //int blockSize = cp.getBlockSize();
             int blockSize = 64 ;
             int outputBlockSize = cp.getOutputSize(encryptByte.length);
             /*if (blockSize == 0)
                  System.out.println("BLOCK SIZE ERROR!");
             }else
             int leavedSize = encryptByte.length % blockSize;
             int blocksNum = leavedSize == 0 ? encryptByte.length / blockSize
             : encryptByte.length / blockSize + 1;
             byte[] cipherData = new byte[outputBlockSize*blocksNum];
             //encrypt each block
             for (int i = 0; i < blocksNum; i++) {
             if ((encryptByte.length - i * blockSize) > blockSize) {
             cp.doFinal(encryptByte, i * blockSize, blockSize, cipherData, i * outputBlockSize);
             } else {
             cp.doFinal(encryptByte, i * blockSize, encryptByte.length - i * blockSize, cipherData, i * outputBlockSize);
             //byte[] cipherData = cp.doFinal(encryptByte);
             //BASE64Encoder encoder = new BASE64Encoder();
             //String encryptedData = encoder.encode(cipherData);
             //cipherData = encryptedData.getBytes();
             FOS.write(cipherData);
             FOS.close();
             } else {
            FileOutputStream FOS = new FileOutputStream("plaintext.txt");
             //int blockSize = cp.getBlockSize();
             int blockSize = 64;
             //int j = 0;
             //BASE64Decoder decoder = new BASE64Decoder();
             //String encryptedData = convert(encryptByte);
             //encryptByte = decoder.decodeBuffer(encryptedData);
             int outputBlockSize = cp.getOutputSize(encryptByte.length);
             int leavedSize = encryptByte.length % blockSize;
             int blocksNum = leavedSize == 0 ? encryptByte.length / blockSize
                       : encryptByte.length / blockSize + 1;
             byte[] plaintextData = new byte[outputBlockSize*blocksNum];
             for (int j = 0; j < blocksNum; j++) {
             if ((encryptByte.length - j * blockSize) > blockSize) {
                  cp.doFinal(encryptByte, j * blockSize, blockSize, plaintextData, j * outputBlockSize);
                  } else {
                  cp.doFinal(encryptByte, j * blockSize, encryptByte.length - j * blockSize, plaintextData, j * outputBlockSize);
             FOS.write(plaintextData);
             //FOS.write(cp.doFinal(encryptByte));
             FOS.close();
}Edited by: sabre150 on Aug 3, 2012 6:43 AM
Moderator action : added [ code] tags so as to make the code readable. Please do this yourself in the future.
Edited by: 949003 on 2012-8-3 上午5:31

1) Why are you not closing the streams when writing the keys to the file?
2) Each block of RSA encrypted data has size equal to the key modulus (in bytes). This means that for a key size of 1024 bits you need to read 128 bytes and not 64 bytes at a time when decrypting ( this is probably the cause of your 'Data must start with zero exception'). Since the input block size depends on the key modulus you cannot hard code this. Note - PKCS1 padding has at least 11 bytes of padding so on encrypting one can process a maximum of the key modulus in bytes less 11. Currently you have hard coded the encryption block at 64 bytes which is OK for your 1024 bits keys but will fail for keys of modulus less than about 936 bits.
3) int size = dataFIS.available(); is not a reliable way to get the size of an input stream. If you check the Javadoc for InputStream.available() you will see that it returns the number of bytes that can be read without blocking and not the stream size.
4) InputStream.read(byte[]) does not guarantee to read all the bytes and returns the number of bytes actually read. This means that your code to read the content of the file into an array may fail. Again check the Javadoc. To be safe you should used DataInputStream.readFully() to read a block of bytes.
5) Reading the whole of the cleartext or ciphertext file into memory does not scale and with very large files you will run out of memory. There is no need to do this since you can use a "read a block, write the transformed block" approach.
RSA is a very very very slow algorithm and it is not normal to encrypt the whole of a file using it. The standard approach is to perform the encryption of the file content using a symmetric algorithm such as AES using a random session key and use RSA to encrypt the session key. One then writes to the ciphertext file the RSA encrypted session key followed by the symmetric encrypted data. To make it more secure one should actually follow the extended procedure outlined in section 13.6 of Practical Cryptography by Ferguson and Schneier.

Javax.crypto.BadPaddingException: Data must start with zero

Actually, I didn't write the entire codes, most of it was written by someone here, and I only tried to add a method. Here:
public class RSAEncrypt {
    private KeyPair keys;
    private Cipher rsaCipher;
    public RSAEncrypt() throws GeneralSecurityException {
        KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
        keygen.initialize(512);
        keys = keygen.generateKeyPair();
        rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
    public byte[] encrypt(byte[] message) throws GeneralSecurityException {
        rsaCipher.init(Cipher.ENCRYPT_MODE, keys.getPublic());
        return rsaCipher.doFinal(message);
    public byte[] decrypt(byte[] encryptedMessage) throws GeneralSecurityException {
         rsaCipher.init(Cipher.DECRYPT_MODE, keys.getPrivate());
         return rsaCipher.doFinal(encryptedMessage);
     * @param args
    public static void main(String[] args) throws Exception {
         String message = "The quick brown fox ran away";
         System.out.println("Message: " + message);
         byte[] encrypted = new RSAEncrypt().encrypt(message.getBytes());
        System.out.println("Cipher Text: " + HexBin.encode(encrypted));
        byte[] decrypted = new RSAEncrypt().decrypt(encrypted);
        System.out.println("Decrypted Text: " + decrypted);
}The idea is that the program should encrypt the String, "The quick brown fox ran away," which it does. But when it gets to this line:
byte[] decrypted = new RSAEncrypt().decrypt(encrypted);i get the error: javax.crypto.BadPaddingException: Data must start with zero.
But here's the funny thing: If I edit the codes so that the encryption and decryption are done in the constructor, it works! Here:
public class RSAEncrypt {
    private KeyPair keys;
    private Cipher rsaCipher;
    public RSAEncrypt() throws GeneralSecurityException {
        KeyPairGenerator keygen = KeyPairGenerator.getInstance("RSA");
        keygen.initialize(512);
        keys = keygen.generateKeyPair();
        rsaCipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
        rsaCipher.init(Cipher.ENCRYPT_MODE, keys.getPublic());
        String message = "The quick brown fox ran away";
        byte[] cipherText = rsaCipher.doFinal(message.getBytes());
        System.out.println(new BASE64Encoder().encode(cipherText));
        rsaCipher.init(Cipher.DECRYPT_MODE, keys.getPrivate());
        byte[] decryptedText = rsaCipher.doFinal(cipherText);
        String dText = new String(decryptedText);
        System.out.println(dText);
     * @param args
    public static void main(String[] args) throws Exception {
         new RSAEncrypt();
}So, I'm confused. The Data must start with zero error is coming up when I pass encrypted data to a method for decryption, but it doesn't come out when I run everything in one method or in the constructor. Why???
Also, when performing RSA encryption (or decryption) on a plaintext stored in a file (not a big file, just a file with probably one or two lines), this is what I do (and it works):
Cipher cipher = Cipher.getInstance("RSA/ECB/PKCS1Padding");
cipher.init(Cipher.ENCRYPT_MODE, pubKey);
CipherInputStream cis = new CipherInputStream(new FileInputStream(new File("message.txt")),cipher);My question is, I do see some people doing this as well:
cipher.doFinal(byteArray);The fact that I don't have this in my code when encrypting data from a file, that's ok, right? I don't need to do a ".doFinal()" method, do I?
Edited by: glenak on Aug 19, 2010 4:26 AM

glenak wrote:
I don't quite understand, but if you mean this:
String message = "The quick brown fox ran away";
System.out.println("Message: " + message);
RSAEncrypt rsaEncrypt = new RSAEncrypt();
Creates and instance of RSAEncrypt with a new random RSA key pair.
byte[] encrypted = rsaEncrypt.encrypt(message.getBytes());Encrypts with the random public key created in the first instance.
System.out.println("Cipher Text: " + HexBin.encode(encrypted));
RSAEncrypt rsaDecrypt = new RSAEncrypt();Creates and second instance of RSAEncrypt with a new random RSA key pair nothing to do with the first instance.
byte[] decrypted = rsaDecrypt.decrypt(encrypted);Attempts to decrypt the ciphertext created with the public key of the first instance using the private key of the second, and totally unrelated, instance.
System.out.println("Decrypted Text: " + decrypted);I still get the "Data must start with zero" error.
If you could show me an example of what you mean, it would help very muchNo example is required. You cannot encrypt with the public key of one key pair and expect to decrypt with the private key of a totally independent key pair.

Can Check Number be start with zero?

Dear all,
I knew that check number on SBO is numeric but check number of my country some number can start with zero and it effected to check number printing form. So, I'm not sure whether we can set check number to be charactor or not. Or how to apply for this issue, pls. suggest.
Thanks you very much.
Angnam

Hi,
It is not possible to set check number as alphanumeric, you can use remarks field to enter check number or any other filed that you think is not required and can be used as check number.
it is not possible to add UDF in checks for payment . if you are using payment method checks tab, you can use UDF.
Thanks,
Neetu

Serial Numbers with Leading Zeros

We have leading Zeros in our serial numbers, is thier customizing or any user exits which would allow us to store and use these as they are .
Ex - SN= 02547 it stores in SAP as 2547 to the user and I think in the DB its right justified and padded with zeros.
Please advise.

Hi
I think you can get this functionality done using function module: CONVERSION_EXIT_ALPHA_INPUT.
Check with ABAPer.
regards
Srinivas

Random numbers with leading zeros

Hi,
I want to generate random numbers with leading zeros.
My code so far:
import java.util.Random;
Random r = new Random();
int randInt = r.nextInt(100);My aimed output is something like:
0012 or 0123 ...
Thanks
Jonny

Hi,
sorry for not getting it with NumberFormat. I used DecmailFormat instead:
DecimalFormat df = new DecimalFormat("0000");
df.setMinimumIntegerDigits(4);
df.format(r.nextInt(40)));This gave me the right output, like 0013 or 0123 ...
Thanks
Jonny

Pad a string with zeros ?

Hello ABAP Experts,
How to pad a string with zeros.. is there a direct method i can use.
eg:
string length is 8
string is custnumb
value is 588
but i would like to see 00000588
please suggest.

You can simply move it to a TYPE n field also.
data: n(8) type n.
data: custnumb(8) type c value '588'.
n = custnumb.
custnumb = n.
Regards,
Rich Heilman

Concatinating numbers with a string...sort of

Well I've got an assignment that says this "Write a method called multiConcat that takes a string and an interger as parameters. Return a string that consists of the string parameter concatenated with itself count time, where count is the integer parameter. For example, if the parameter vales are 'hi" and 4, the return value is "hihihihi". Return the original string if the interger parameter is less than two.
So I've tried a couple of things that I thought would work with my small amount of CS courses, but I have not been able to come up with a resolution for this assignment yet. I do not want anyone to post any time of code yet. All I ask for is for someone to point me in the correct direction with some kind of a learning document etc.

for that the answer is
class MyClass{
     StringBuffer string1=null;
public      StringBuffer myMethod(String string , int number){
string1=new StringBuffer(string);
          if (number<2){
               return string1;
          }else{
               while(number!=1){
                    string1.append(string);//here string is String and string1 is StringBuffer tehn only we can get coorect data.then u will get output hihihihi for input hi,4
                    //try it by keeping both of type stringBuffer, u will get out put hihihihihihihihi for input hi,4
                    --number;
               return string1;
class FirstProgram {
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          int number=Integer.parseInt(args[1]);
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Table Sorter for String displaying Numbers

Hi All.
I have a table whose one of the columns display numbers with data type string. This is becuase :
1. RFC gives me as String.
2. I have to display blank in case no value or zero is present (since int, long etc default to Zero, hence
    not used).
I have to sort this column as a number.Since the datatype is string, it sorts the numbers as string
for example : if we have values like : 2, 4, 3, 10, 19, 15, 20, 22
currently as String it sorts as follows : 10, 15, 19, 2, 20, 22, 3, 4.
but i want as follows : 2, 3, 4, 10, 15, 19, 20, 22.
Useful answers will appreciated.
Thanks and regards,
Aditya Deshpande.

In order to sort the node with attribute of type string; please use the following code..
Here use the node where you store the string value..
wdContext.nodeTest().sortElements(
          new Comparator() {
               public int compare(Object o1, Object o2) {
                    // TODO Auto-generated method stub
               IPrivateExperimentView.ITestElement ele1 = (IPrivateExperimentView.ITestElement)o1;
               IPrivateExperimentView.ITestElement ele2 = (IPrivateExperimentView.ITestElement)o2;
                    return Integer.parseInt( ele1.getNumStr()) > Integer.parseInt( ele2.getNumStr()) ? 1 : -1;
input : "2", "4", "3", "10", "19", "15", "20", "22"
result : "2", "3", "4", "10", "15", "19", "20", "22"
vinod

Assign hexadecimal value to an Integer variable preceding with zero

hi
i need to pass an hexadecimal value, preceding with zero (0).
like 0775
the above hexadecimal value should be assigned to an integer variable. While i am trying to assign it, the output could be truncate the preceding zero value. Is it possible to do my requirement without truncating the preceding zero.?
Edited by: sasi on Jul 23, 2012 7:09 PM

I agree on that, this can not be carried out the way you explained.
Either you store the hexadecimal value as a string, and convert it before arithmetic operations:
int number = Integer.parseInt("0775", 16);
Or you store it as an integer (no leading zero) and convert it to string as you display it:
int number = 0x0775;
System.out.printf("%1$04x", number);

Your instructions for recovering your profile with all your info (for vista) is not working on my end, when I copy and pasted the line in the start menu it came up with no hits...

When I tried to recover my profile (I am going to be reformatting and wanted to save my bookmarks and passwords) the line in your help that I was supposed to type into the start menu came up with zero hits, if you could let me know what the problem may be I would appreciate it, thanks!

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https://wiki.mozilla.org/Mobile/Platforms/Android
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(Note: To download the app directly for an AT&T phone, you will have to search for instructions on "sideloading" the APK file, since AT&T disables the option to install from non-Market sources.)

Starting a string of numbers with zero

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