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How to replace values in a string?

 
Ajoo Bar
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Hi,

I am trying to figure out how to do this

I have these properties in my property file
For example
Message1 = My First Name is &1 and my Last Name is &2
Message2 = &1 I live in &3

&1= John
&2=Font
&3= Florida

In my java code I read these properties from file
String message1 = My First Name is &1 and my Last Name is &2

I want to replace the ampersands with &1 and &2 in the message

The above message will look like-- My First Name is John and my Last Name is Font
And if I read message2 the Message will be John lives in Florida

How do I do that?


Thanks
Ajoo
 
Amit Bhargava
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Try using the String.replaceAll() method. Refer to the Java API for details.
 
Winston Gutkowski
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Ajoo Bar wrote:I want to replace the ampersands with &1 and &2 in the message
How do I do that?

Well, first you ShowSomeEffort. What have you written so far, and what results are you getting?

The policy here is not to simply hand out ready-made code.

Winston
 
Manoj Kumar Jain
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You need not to replace the string, I think you should append the string like



 
fred rosenberger
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you can't replace values in a String. Strings are immutable - once they are created, they can never be changed.

HOWEVER, you can use various methods of the String class to create a NEW String that looks like what you want, using the old String as a sort of starting point...
 
Paul Clapham
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I wouldn't do that. I would just use the MessageFormat class which is part of the standard Java API and which is designed to do exactly that.
 
It is sorta covered in the JavaRanch Style Guide.
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