import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "(?<=Existing Products & Quantity & ID)(.|\\n)*(?=CURRENT)";
final String string = "B) For Insert and Modify : Modify Information of Products\n"
+ "(Must check and verify)\n"
+ "Existing Products & Quantity & ID\n"
+ "(1) Jeans 75 J73820\n"
+ "(2) Shirts 10 S02932\n"
+ "(3) Bottoms 2 B0239\n"
+ "*Order ID (Customer Purchase): THK78183XL9102\n"
+ "*Item to check: Stock, Brand\n"
+ "*Before and after:\n\n"
+ "CURRENT\n\n"
+ "-----------------------------------------------------------------------------\n"
+ "Product ID : J73820\n"
+ "Quantity : 75\n"
+ "Title : Jeans\n"
+ "Brand: XXXX\n"
+ "-----------------------------------------------------------------------------\n"
+ "NEXT ACTION\n"
+ "Increase stock\n\n"
+ "TO BE\n\n"
+ "-----------------------------------------------------------------------------\n"
+ "Product ID : J73820\n"
+ "Quantity : 100\n"
+ "Title : Jeans\n"
+ "Brand: XXXX\n"
+ "-----------------------------------------------------------------------------\n"
+ "NEXT ACTION\n"
+ "Add 25 unit";
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