How to create a new line in label in Xcode

How to create a new line in label. for example I have two buttons & one label. when i press first button, l want to change the label text to "Hello World". then when I press the second button, on the same label I need to display"Good Bye" on the next line in xcode 5?
I want to display the lablel like below:
Hello World
Good Bye

I am using Xcode to develop an app for iOS.
I tried using multi-line label & belwo is my code.
- (IBAction)change:(UIButton *)sender {
self.Screen.text = @"\nHello World";
- (IBAction)newChange:(UIButton *)sender {
self.Screen.text = @"\nGood bye";
everytime when i pressed the button, it replacing the whold lable text instead of adding the second line.

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Hi Amar
You can use structured products:
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How to create a new field in a sub screen in material master. ?

How to create a new field in a sub screen in material master. ?
Kindly help us.
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Activities
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Example
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How to create a new variant and a job sheduled to use it for the ......

How to create a new variant and a job sheduled to use it for the exisisting programs

Hi
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fieldcat-tabname
fieldcat-seltext_m
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been configured already. In particular, all of the other functions
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but if you do not want to permit the user to administrate the
layouts, you grant him or her the authorization for activities 01
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Check this link it will be mosty usefull for u
http://www.sap-img.com/fu017.htm
Reward all helpfull answers
Regards
Pavan

How to create a new Business Unit

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Tony Garabedian
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Message was edited by:
Tony Garabedian

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Sorry, Noobie here!
I have a text input box. If the enter key is pressed, a new line begins; thus making the previous line invisible unless the backspace key is pressed.
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This worked! Thanks so much!

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