import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?:^crt|\\G(?!\\A))(?:(?!^$)\\D)*\\K[.:\\d]+";
final String string = "crt - 00:00:00 up 200 days, 23:35, 0 users, load average: 0.04, 0.05, 0.02\n"
+ "Tasks: 300 total, 2 running, 298 sleeping, 0 stopped, 0 zombie\n"
+ "Cpu(s): 12.0%us, 2.5%sy, 0.0%ni, 89.2%id, 0.0%hi, 0.1%si, 0.0%st\n"
+ "Mem: 123456K total, 1234567k used, 989991k free, 11156793k buffers\n"
+ "Swap: 456K total, 30897564k used, 785431k free, 23445897k cached\n\n"
+ "PID User Pr NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND\n"
+ "24 455 36 63 700 800 900 456 87 35 46\n"
+ "2 root 80 0 0 0 0 0 0 0 0 0 0 0 0 0 0 thread\n\n"
+ "crt - 00:00:04 up 200 days, 23:39, 0 users, load average: 0.04, 0.05, 0.02\n"
+ "Tasks: 300 total, 2 running, 298 sleeping, 0 stopped, 0 zombie\n"
+ "Cpu(s): 12.0%us, 2.5%sy, 0.0%ni, 89.2%id, 0.0%hi, 0.1%si, 0.0%st\n"
+ "Mem: 123456K total, 1234567k used, 989991k free, 11156793k buffers\n"
+ "Swap: 456K total, 30897564k used, 785431k free, 23445897k cached";
final Pattern pattern = Pattern.compile(regex, Pattern.MULTILINE);
final Matcher matcher = pattern.matcher(string);
while (matcher.find()) {
System.out.println("Full match: " + matcher.group(0));
for (int i = 1; i <= matcher.groupCount(); i++) {
System.out.println("Group " + i + ": " + matcher.group(i));
}
}
}
}
Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for Java, please visit: https://docs.oracle.com/javase/7/docs/api/java/util/regex/Pattern.html