Can compare Matcher.group(n) with String in Java?

Question

I am trying to ping and take the ping summary to be listed out in Matcher.group(0). The ping summary result which shown is:

Matcher.group(0)

time=35ms
time=3ms
time=2ms
time=3ms
time=2ms
time=83ms
time=3ms
time=69ms
time=2ms
time=5ms
java.io.IOException: The pipe is being closed
BUILD SUCCESSFUL (total time: 9 seconds)

Can I / How can I comparing these results? What I mean is, can I do something like:

if(m.group(0) >= "time=66ms") {
         //do something       
} else if (m.group(0) < "time=66ms") {
                 //do something
       }

Answer 1

You'll want to capture just the number of milliseconds. Where you have something like time=\d+ms in the regexp, use time=(\d+)ms instead. Then you can use matcher.group(1) to get that string, and use Integer.parseInt to get it as an int.

int ms = Integer.parseInt(matcher.group(1));
if (ms >= 66) {
    // do something
}
else {
    // do something else
}

Note that you don't need the else if, just an else is fine. If an int isn't >= someValue, then it has to to be < someValue -- you don't need to check that tautology in the code. By the way, I would put that number 66 into a constant somewhere:

private static final int TIMEOUT_THRESHOLD = 66; // or some better name
...
int ms = Integer.parseInt(matcher.group(1));
if (ms >= TIMEOUT_THRESHOLD) ...

That way it'll be easy to change it later, if you need to, without searching everywhere through your code.