Databases
StackOverflow2013
Postsdbo
PO
 

Note that there are some explanatory texts on larger screens.

plurals
  1. PO
    primarykey
    data
    text
    <p>Personally, I think Object serialization is over kill in this situation.</p> <p>You could simply write the details to a text file...</p> <pre><code>public TestFileIO() { try { writeUser(new File("User.inf"), "Test", "Password".toCharArray()); } catch (IOException ex) { ex.printStackTrace(); } } public void writeUser(File file, String name, char[] password) throws IOException { BufferedWriter bw = null; try { bw = new BufferedWriter(new FileWriter(file)); bw.write(name); bw.newLine(); bw.write(password); bw.flush(); } finally { try { bw.close(); } catch (Exception e) { } } } </code></pre> <p>This will simply write the user name and password to a file, separating each by a new line.</p> <p>If you need more then one user in the file, you could simple write the user name password on the same line, using a predefined delimiter...</p> <pre><code>public TestFileIO() { try { writeUser(new File("User.inf"), "Test", "Password".toCharArray()); } catch (IOException ex) { ex.printStackTrace(); } } public void writeUser(File file, String name, char[] password) throws IOException { BufferedWriter bw = null; try { bw = new BufferedWriter(new FileWriter(file)); bw.write(name); bw.write(";"); bw.write(password); bw.flush(); } finally { try { bw.close(); } catch (Exception e) { } } } </code></pre> <p>Now, if you worried about saving the password as plain text, you could (and personally world) save the password as a MD5 hash...</p> <pre><code>public TestFileIO() { try { writeUser(new File("User.inf"), "Test", "Password".toCharArray()); } catch (Exception ex) { ex.printStackTrace(); } } public void writeUser(File file, String name, char[] password) throws IOException, NoSuchAlgorithmException { BufferedWriter bw = null; try { MessageDigest md = MessageDigest.getInstance("MD5"); byte[] bytes = new byte[password.length]; for (int i = 0; i &lt; bytes.length; i++) { bytes[i] = (byte) password[i]; } md.update(bytes); byte[] mdbytes = md.digest(); StringBuffer sb = new StringBuffer(); for (int i = 0; i &lt; mdbytes.length; i++) { sb.append(Integer.toString((mdbytes[i] &amp; 0xff) + 0x100, 16).substring(1)); } bw = new BufferedWriter(new FileWriter(file)); bw.write(name); bw.newLine(); bw.write(sb.toString()); bw.flush(); } finally { try { bw.close(); } catch (Exception e) { } } } </code></pre>
    singulars
    1. This table or related slice is empty.
    1. POHow do I solve this serialization error on my log in/create account program?
      singulars
      1. PTQuestion
    1. PTAnswer
    1. This table or related slice is empty.
    1. USMadProgrammer
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. POHow do I solve this serialization error on my log in/create account program?
      singulars
      1. PTQuestion
    1. This table or related slice is empty.
    1. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTAcceptedByOriginator
    2. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    3. VO
      singulars
      1. PO
      1. This table or related slice is empty.
      1. VTUpMod
    1. COI have no idea what a lot of that code means, but thanks for the great answer. I'll add some of that stuff later after I read up on it.
      singulars
      1. PO
      1. UShasherr
    2. COBasically, all it is doing is writing the user name and password as text to a text file. Check out [Basic I/O]9http://docs.oracle.com/javase/tutorial/essential/io/) for more details
      singulars
      1. PO
      1. USMadProgrammer
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload