Can you overwrite a String?

**juxta** · 05-07-2012, 08:08 PM

I am making a password system, and I want to overwrite a string.

First I enter the pin and is saved into a String, and when I save a new password, I want it to overwrite the same String.

For example if I saved '123' into savedpassword=""; , and if i enter a new password, will it overwrite it?

Is this possible?

Sorry, if i am asking a dumb question.
Thanks.

**doWhile** · 05-07-2012, 08:20 PM

For example if I saved '123' into savedpassword=""; , and if i enter a new password, will it overwrite it?

Did you try it? What happened? Often it is useful to write up a small test program to demonstrate to yourself, one way or another, a particular functionality such as this.

**juxta** · 05-07-2012, 08:22 PM

Originally Posted by doWhile

Did you try it? What happened? Often it is useful to write up a small test program to demonstrate to yourself a functionality

Okay, I will let you know. :)

**juxta** · 05-07-2012, 08:40 PM

Originally Posted by doWhile

Did you try it? What happened? Often it is useful to write up a small test program to demonstrate to yourself, one way or another, a particular functionality such as this.

Oh yea! I got it to overwrite.

BUT now its getting password validated, and then i can enter a new password that saves it.

Also, im creating this through java GUI code, and was wondering, how can I disable keypad input?

Thanks.

**doWhile** · 05-07-2012, 09:42 PM

Glad you got it...for what its worth overwrite is incorrect terminology - the first variable is a reference to a String object, and you reassign that reference to another String object.

For your other question, I suggest posting a new question and include an SSCCE/code that demonstrates what you have...as we have no clue how you are receiving 'keypad input'.

**juxta** · 05-07-2012, 09:44 PM

Originally Posted by doWhile

Glad you got it...for what its worth overwrite is incorrect terminology - the first variable is a reference to a String object, and you reassign that reference to another String object.

For your other question, I suggest posting a new question and include an SSCCE/code that demonstrates what you have...as we have no clue how you are receiving 'keypad input'.

but the thing is, I can't show a lot of it because I could get plagiarised if someone copies mine.

**doWhile** · 05-08-2012, 02:18 AM

Originally Posted by juxta

but the thing is, I can't show a lot of it because I could get plagiarised if someone copies mine.

Well then, best of luck. But let me say this: that's one advantage of an SSCCE - its not a code dump, which will often do little to help you get an answer any faster, but a quick and boiled down example of the question you are asking. Google the acronym to learn what it truly is