import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "T\\s?=\\s?-?\\d+\\.\\d+\\s?to\\s?\\d+\\.\\d+\\s?K";
final String string = "Table 1. Coefficients for the polynomial expansion equations. Standard deviations (see introduction):\n"
+ "σ = 5.5832 x 10-1 (low temperature range), σc,w = (4.8307 x 10-1 combined temperature ranges, weighted),\n"
+ " \n\n\n\n"
+ "σc,uw = 3.4016 x 10-1 (combined temperature ranges, unweighted)\n"
+ " T = 176.15 to 400.00 K T = 400.00 to 512.64 K Coefficient \n"
+ "ρ = A + BT + CT 2 + DT 3 + … ρ = [1 + 1.75(1 - T/Tc)1/3 + 0.75(1 - T/Tc)]\n"
+ " [ρc + A(Tc -T ) + B(Tc - T )2 + C(Tc - T )3 + D(Tc - T )4]";
final Pattern pattern = Pattern.compile(regex);
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