Re: Base64 encryption - which letters are not used by encryption - Java Discussion Boards

Cedric Moonen23-Dec-10 0:05

23-Dec-10 0:05

Please, check the javadoc !
Yes you can use parseInt but it returns an int, not an Integer. So, depending on your needs, either use valueOf or parseInt.

Cédric Moonen
Software developer

Charting control [v3.0]
OpenGL game tutorial in C++

Re: convert to integer?

RaviRanjanKr23-Dec-10 4:42

RaviRanjanKr

23-Dec-10 4:42

pancakeleh wrote:

how do i convert from string to integer?

you can convert string to integer by using various ways
you can use valueOf method of Integer class in this way

Integer obj = Integer.valueOf(str_value); // str_value is your string value

you can use Integer Constructor

Integer obj = new Integer(str_value);

you can use parseInt method

int objt = Integer.parseInt(str_value);

for more details move there[^]

Re: convert to integer?

vasehu27-Dec-10 13:23

vasehu

27-Dec-10 13:23

For Example:
String abc123 = "123";
Integer abcint = Integer.valueOf(abc123);

Re: convert to integer?

pancakeleh27-Dec-10 15:14

pancakeleh

27-Dec-10 15:14

i got it. thanks alot.

Re: convert to integer?

bilal.hobnail4-Jan-11 19:08

bilal.hobnail

4-Jan-11 19:08

int int_page_id=o;
String str_page_id="5";
try {

int_page_id = Integer.parseInt(str_page_id);

} catch(NumberFormatException ex) {
ex.printStackTrace();
}

Re: convert to integer?

Ramaiah Raj30-Jan-11 20:23

Ramaiah Raj

30-Jan-11 20:23

String a="2";
int value = Integer.parseInt(a);

Base64 encryption - which letters are not used by encryption

TorstenH.21-Dec-10 23:17

TorstenH.

21-Dec-10 23:17

Hey!

I need to save some properties encrypted. So I have a key and a value, which I should separate in some way with some character or symbol. The most used "=" is used in Base64 encoding and will not work.

Which characters or symbols or totally strange hieroglyphs are not used in Base64 encoding?
How can guarantee access to the properties Confused | :confused:

Anyone ever played that game?

regards
Torsten

I never finish anyth...

Re: Base64 encryption - which letters are not used by encryption

Eddy Vluggen22-Dec-10 0:53

Eddy Vluggen

22-Dec-10 0:53

TorstenH. wrote:
So I have a key and a value, which I should separate in some way with some character or symbol. The most used "=" is used in Base64 encoding and will not work.

You should be able to convert the string "bla=1" to Base64 and back, regardless of the equal-sign within that string. Did it fail, and if so, what error did it generate?

I are Troll Suspicious | :suss:

Re: Base64 encryption - which letters are not used by encryption

TorstenH.22-Dec-10 1:19

TorstenH.

22-Dec-10 1:19

sometimes its simpler than expected. Have I thought of doing it this way?

You're right, I could convert the complete string. Right now I'm just converting the value - this looks like "label.text=qwertzwtf==". This has the opportunity of deleting certain entries when needed. The values are not predefined, admin users (our crew) are able to add additional entries by using a dialog. Simple users (customers) should not be able to manipulate out those values(safety reasons).

I figured out (try&error) that the "@"-symbol is pretty safe, so I changed my properties to "label.text@qwertzwtf==". works like a charm so far Smile | :)

regards,
Torsten

I never finish anyth...

Re: Base64 encryption - which letters are not used by encryption

Eddy Vluggen22-Dec-10 11:02

Eddy Vluggen

22-Dec-10 11:02

TorstenH. wrote:
The values are not predefined, admin users (our crew) are able to add additional entries by using a dialog. Simple users (customers) should not be able to manipulate out those values(safety reasons).

Sounds like a convenient solution to a common problem Smile | :)

I are Troll Suspicious | :suss:

Re: Base64 encryption - which letters are not used by encryption

TorstenH.22-Dec-10 21:46

TorstenH.

22-Dec-10 21:46

just the regular magic... I 'll leave it to the "@" and wait for the QC department to find out if it works Roll eyes | :rolleyes:

regards,
Torsten

I never finish anyth...

Re: Base64 encryption - which letters are not used by encryption

Luc Pattyn23-Dec-10 1:03

Luc Pattyn

23-Dec-10 1:03

TorstenH. wrote:
I could convert the complete string

why would you? the first equal sign would be your separator, what is to the left of it would be the key (the name), what is to the right of it the base64-encoded value.

the advantage is the structure of your file remains intelligible.

Smile | :)

Luc Pattyn [Forum Guidelines] [Why QA sucks] [My Articles] Nil Volentibus Arduum

Please use <PRE> tags for code snippets, they preserve indentation, improve readability, and make me actually look at the code.

Re: Base64 encryption - which letters are not used by encryption

jschell27-Dec-10 8:22

jschell

27-Dec-10 8:22

Characters will be
A–Z
a–z
0–9
+
/
=

So anything except those would work. Like space or bar(|).

Reference this.

http://en.wikipedia.org/wiki/Base64[^]

Re: Base64 encryption - which letters are not used by encryption

TorstenH.2-Jan-11 21:05

TorstenH.

2-Jan-11 21:05

cool. thanks.

This gives me the certainty to have done it right and to have a safe functionality Smile | :)

regards,
Torsten

I never finish anyth...

Adding data to table

pancakeleh21-Dec-10 21:41

pancakeleh

21-Dec-10 21:41

when i try to add data into the table, when the add button is click, they would say no items found.

Screenshot: http://img525.imageshack.us/img525/3897/howcomei.png[^]

needing help!

Re: Adding data to table

TorstenH.21-Dec-10 22:20

TorstenH.

21-Dec-10 22:20

you need to update your object, as the value of the textbox is not magic and will not jump into place by itself.

also - as you're asking several questions about it: Essentials, Part 1, Lesson 7: Database Access and Permissions @ Sun Online Training

a book is also a good invest.

regards,
Torsten

I never finish anyth...

Re: Adding data to table

pancakeleh22-Dec-10 17:33

pancakeleh

22-Dec-10 17:33

oh update object meaning? so sorry for asking cos i am very new and still dunno much. This also occurs when the delete button is being clicked.

my code as shown below:

   public String incidentDel_btn_action() {<br />
        <br />
            form1.discardSubmittedValues("addIncidentStatus");<br />
<br />
        try {<br />
            RowKey rk = tableRowGroup2.getRowKey();<br />
            if (rk != null) {<br />
                incidentstatusDataProvider.removeRow(rk);<br />
                incidentstatusDataProvider.commitChanges();<br />
                incidentstatusDataProvider.refresh();<br />
            }<br />
        }<br />
        catch (Exception ex) {<br />
            log("ErrorDescription", ex);<br />
            error(ex.getMessage());<br />
        }<br />
        return null;<br />
    }

modified on Thursday, December 23, 2010 3:26 AM

database problem

pancakeleh21-Dec-10 20:52

pancakeleh

21-Dec-10 20:52

Hello i come across this problem when i am trying to delete info from my database.

Screenshot here: ""[^]

any solution?

Re: database problem

Richard MacCutchan21-Dec-10 21:33

Richard MacCutchan

21-Dec-10 21:33

The message appears to be reaonably clear. It appears that you are trying to delete something but there is more than one row that matches and the DB does not know which one to delete.

Just say 'NO' to evaluated arguments for diadic functions! Ash

Re: database problem

pancakeleh21-Dec-10 21:44

pancakeleh

21-Dec-10 21:44

meaning i have 2 attributes with the same values? however when i try to change it i am still unable to delete.

Re: database problem

TorstenH.21-Dec-10 22:15

TorstenH.

21-Dec-10 22:15

you have 2 rows in your dataset table (not the GUI table!), which can not be clearly identified by the values you want to identify it with.

example:
row1 India Asia Delhi ...
row2 India Asia Bombay ...

You can not delete that one row with "India" and "Asia" as your database does not know which you meant.
You can delete the row with "India" and "Bombay" or the row with "Asia" and "Bombay". This works, as it is clearly identified.

regards,
Torsten

I never finish anyth...

Re: database problem

Richard MacCutchan22-Dec-10 0:59

Richard MacCutchan

22-Dec-10 0:59

Try posting this in the Database forum; I see nothing about Java here.

Just say 'NO' to evaluated arguments for diadic functions! Ash

Re: database problem

TorstenH.21-Dec-10 21:52

TorstenH.

21-Dec-10 21:52

"no unique row" - don't you have an ID or another Key-Value in that db-table to identify the row?
A ID is always a good thing, even if you barely use it.

regards,
Torsten

I never finish anyth...

Scroll bars for table?

pancakeleh21-Dec-10 15:07

pancakeleh

21-Dec-10 15:07

Hello, i am currently using NetBeans, web application, if there any way or method to set scroll bars for tables?

Re: Scroll bars for table?

RaviRanjanKr21-Dec-10 18:19

RaviRanjanKr

21-Dec-10 18:19

pancakeleh wrote:
if there any way or method to set scroll bars for tables

Of-course there is a method to set scroll bars for tables.

The JScrollPane provides you to set scrollable facility to scroll the scroll bar. hence, The JScrollPane provides the facility for looking its data by scrolling the scroll bar either horizontal or vertical or both.
navigate the given link Creating a Scrollable JTable[^] and this link[^] to know how to create and Use Table.

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.