Pattern Match Question

[Chris]

All,
I have a question regarding pattern matching. In my class below an
argument String is taken in and compared to the name ‘chris’. If
‘chris’ is the only word in String s then the pattern checks out okay.
However, I’m wondering if it is possible to enter a sentence worth of
words and if ‘chris’ happens to be one of those words in the sentence
then the return is true otherwise false.

Thank you very much for your time.
______________________________________________________________

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class NameCheck {

public static boolean patternMethod(String s) {
System.out.println(s);
Pattern p = Pattern.compile("chris");
Matcher m = p.matcher(s);
boolean isOk = m.matches();
return isOk;
}
}

 

[Knute Johnson]

All,
I have a question regarding pattern matching. In my class below an
argument String is taken in and compared to the name ‘chris’. If
‘chris’ is the only word in String s then the pattern checks out okay.
However, I’m wondering if it is possible to enter a sentence worth of
words and if ‘chris’ happens to be one of those words in the sentence
then the return is true otherwise false.

Thank you very much for your time.
______________________________________________________________

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class NameCheck {

public static boolean patternMethod(String s) {
System.out.println(s);
Pattern p = Pattern.compile("chris");
Matcher m = p.matcher(s);
boolean isOk = m.matches();
return isOk;
}
}

m.find();

 

[Arne Vajhøj]

I have a question regarding pattern matching. In my class below an
argument String is taken in and compared to the name ‘chris’. If
‘chris’ is the only word in String s then the pattern checks out okay.
However, I’m wondering if it is possible to enter a sentence worth of
words and if ‘chris’ happens to be one of those words in the sentence
then the return is true otherwise false.

public static boolean patternMethod(String s) {
System.out.println(s);
Pattern p = Pattern.compile("chris");
Matcher m = p.matcher(s);
boolean isOk = m.matches();
return isOk;
}

Try:

Pattern p = Pattern.compile(".*\\bchris\\b.*");

Arne

 

[Chris]

Try:

         Pattern p = Pattern.compile(".*\\bchris\\b.*");

Arne

THEY BOTH WORK! THANK YOU VERY MUCH!!

 

[Jim Korman]

THEY BOTH WORK! THANK YOU VERY MUCH!!

They do...But understand the difference between find() and matches(),
It's important

Jim (who learned the hard way

 

[Roedy Green]

If
‘chris’ is the only word in String s then the pattern checks out okay.
However, I’m wondering if it is possible to enter a sentence worth of
words and if ‘chris’ happens to be one of those words in the sentence
then the return is true otherwise false.

See the section on regex match vs find vs looking at.

See http://mindprod.com/jgloss/regex.html