Manipulating strings

[gaborn415]

I would assume this would be very easy but I'm not seeing it listed anywhere. How can I change a string variable to read something else? For instance I want to take this string "$200,000" and convert it to "200000". How can I do this in Java? Thanks for the help!

[Fubarable]

You need to give us the specific rules of your desired transformation. One example isn't enough to be able to guess your rules.

[sehudson]

subString is going to probably do what you are looking for. You can define a beginning and end index(if needed) and 'chop' the string down to what you want. You can also use indexOf and pass in a token if you want to manipulate your string based on the presence/position of some character or pattern

[gaborn415]

I have three variables which are being passed to an array. I want them to become doubles and so I need to get rid of the pieces of the string which cannot convert to a double. So I have "$200,000" and "5.75%" and "7 years" as strings. I want to convert them to doubles to do math with them. So I want the strings to become these doubles 200000, and 5.75 and 7. Hope that helps!

[JavaHater]

you can use replaceAll() or replace().

String myString = "$200,000";
System.out.println ( myString.replaceAll( "[$,]", ""  );

check the documentation for replaceAll(). I write only from memory.

[DarrylBurke]

So you want to retain all characters that are digits, and exclude the rest. Read the documentation for String#replaceAll(...) as hinted by JavaHater, along with the Pattern API.

Some valuable lessons on using regex can be found here:
Regular-Expressions.info - Regex Tutorial, Examples and Reference - Regexp Patterns

db

[gaborn415]

Thanks for the help, sorry it took me a while to respond! ;)