Compare part of a string

[haddock256]

Hi folks

I need to find a way to compare part of a string to another (ignoring case inlcuded), but can´t find to code for that. Hopefully someone can give a hand.

So if i have a string, that says "Boy, I could sure use lots of cocaine right now", and I want to a positive match if comparing it to a string which is "Cocaine", how should my comparison look?

(sry for the example, it was the first that came to mind :)

[DarrylBurke]

Have you read through the API for java.lang.String?

db

[haddock256]

Yep, unfortunately i dont understand it, being so new to java :)

Im on a "dicphering other code" state, to figure out what to do. So i was hoping to get a bit of code I could play with, that would help a lot.

[jhuber151]

For this you can use the method .contains() from the string class. What it does is takes a sequence of chars and compares them to a string. If that string has the char sequence it returns true.
String (Java 2 Platform SE 5.0)

To make it case insensitive you should look into a method that allows you to control to case of the Strings.

[DarrylBurke]

I'll help you along, but you have to write your own code. To ignore case, you would convert both Strings to either upper or lower case -- String has methods for that. And which method in the API do you think might help you find whether one String contains another String?

db

[DarrylBurke]

For this you can use the method .contains() from the string class. What it does is takes a sequence of chars and compares them to a string. If that string has the char sequence it returns true.
String (Java 2 Platform SE 5.0)

To make it case insensitive you just add on a toLowerCase() to both strings, so it would look similar to

String checkIn = "The cat ran in the house";
String compareTo = "cat";
boolean contains = checkIn.toLowerCase().contains(compareTo.toLowerCase());
System.out.println(contains);

jhuber151, please don't spoonfeed. Give people a chance to learn.

db

[haddock256]

"contains = checkIn.toLowerCase"

Brilliant. I had found a way, but this is way more clean and simple. Thx a lot.

[bob 6]

you can also use

message.indexOf("word")

Just another possibility you might consider.

[DarrylBurke]

you can also use

message.indexOf("word")

Just another possibility you might consider.

No, you can't. Read the question in the first post, carefully.

db