import java.util.regex.Matcher;
import java.util.regex.Pattern;
public class Example {
public static void main(String[] args) {
final String regex = "\\[[+-]?([048]|\\d*([02468][048]|[13579][26]))\\]";
final String string = "\"[+05620]\" // 5620 is divisible by 4 (valid)\n"
+ "\"[+05621]\" // 5621 is not divisible by 4 (invalid)\n"
+ "\"[-55622]\" // -55622 is not divisible by 4 (invalid)\n"
+ "\"[005623]\" // 5623 invalid\n"
+ "\"[005624]\" // 5624 valid\n"
+ "\"[-05628]\" // valid\n"
+ "\"[005632]\" // valid\n"
+ "\"[555636]\" // valid\n"
+ "\"[+05640]\" // valid\n"
+ "\"[005600]\" // valid\n"
+ "\"[8.04]\" // invalid\n"
+ "\"[8.00]\" // valid\n\n"
+ "\"[-0]\"\n"
+ "\"...may be [+002016] will be.\"\n\n"
+ "\"[+05621]\", \"[-55622]\", \n"
+ "\"[005623]\", \"[~24]\", \"[8.04]\", \n"
+ "\"No, [2014] isn't a multiple of 4...\"\n\n"
+ "\"[0]\"\n"
+ "\"[4]\"\n"
+ "\"[8]\"\n"
+ "\"[12]\"\n"
+ "\"[16]\"\n"
+ "\"[20]\"\n"
+ "\"[24]\"\n"
+ "\"[28]\"\n"
+ "\"[32]\"\n"
+ "\"[36]\"\n"
+ "\"[40]\"\n"
+ "\"[44]\"\n"
+ "\"[48]\"\n"
+ "\"[52]\"\n"
+ "\"[56]\"\n"
+ "\"[60]\"\n"
+ "\"[64]\"\n"
+ "\"[68]\"\n"
+ "\"[72]\"\n"
+ "\"[76]\"\n"
+ "\"[80]\"\n"
+ "\"[84]\"\n"
+ "\"[88]\"\n"
+ "\"[92]\"\n"
+ "\"[96]\"\n"
+ "\"[100]\"\n"
+ "\"[104]\"\n"
+ "\"[108]\"\n"
+ "\"[112]\"\n"
+ "\"[116]\"\n"
+ "\"[120]\"\n"
+ "\"[124]\"\n"
+ "\"[128]\"\n\n"
+ "\"[1]\"\n"
+ "\"[2]\"\n"
+ "\"[3]\"\n"
+ "\"[5]\"\n"
+ "\"[6]\"\n"
+ "\"[7]\"\n"
+ "\"[9]\"\n"
+ "\"[10]\"\n"
+ "\"[11]\"\n"
+ "\"[13]\"\n"
+ "\"[14]\"\n"
+ "\"[15]\"\n"
+ "\"[17]\"\n"
+ "\"[18]\"\n"
+ "\"[19]\"\n"
+ "\"[21]\"\n"
+ "\"[22]\"\n"
+ "\"[23]\"\n"
+ "\"[25]\"\n"
+ "\"[26]\"\n"
+ "\"[27]\"\n"
+ "\"[29]\"\n"
+ "\"[30]\"\n"
+ "\"[31]\"\n"
+ "\"[33]\"\n"
+ "\"[34]\"\n"
+ "\"[35]\"\n"
+ "\"[37]\"\n"
+ "\"[38]\"\n"
+ "\"[39]\"\n"
+ "\"[41]\"\n"
+ "\"[42]\"\n"
+ "\"[43]\"\n"
+ "\"[45]\"\n"
+ "\"[46]\"\n"
+ "\"[47]\"\n"
+ "\"[49]\"\n"
+ "\"[50]\"\n"
+ "\"[51]\"\n"
+ "\"[53]\"\n"
+ "\"[54]\"\n"
+ "\"[55]\"\n"
+ "\"[57]\"\n"
+ "\"[58]\"\n"
+ "\"[59]\"\n"
+ "\"[61]\"\n"
+ "\"[62]\"\n"
+ "\"[63]\"\n"
+ "\"[65]\"\n"
+ "\"[66]\"\n"
+ "\"[67]\"\n"
+ "\"[69]\"\n"
+ "\"[70]\"\n"
+ "\"[71]\"\n"
+ "\"[73]\"\n"
+ "\"[74]\"\n"
+ "\"[75]\"\n"
+ "\"[77]\"\n"
+ "\"[78]\"\n"
+ "\"[79]\"\n"
+ "\"[81]\"\n"
+ "\"[82]\"\n"
+ "\"[83]\"\n"
+ "\"[85]\"\n"
+ "\"[86]\"\n"
+ "\"[87]\"\n"
+ "\"[89]\"\n"
+ "\"[90]\"\n"
+ "\"[91]\"\n"
+ "\"[93]\"\n"
+ "\"[94]\"\n"
+ "\"[95]\"\n"
+ "\"[97]\"\n"
+ "\"[98]\"\n"
+ "\"[99]\"\n"
+ "\"[101]\"\n"
+ "\"[102]\"\n"
+ "\"[103]\"\n"
+ "\"[105]\"\n"
+ "\"[106]\"\n"
+ "\"[107]\"\n"
+ "\"[109]\"\n"
+ "\"[110]\"\n"
+ "\"[111]\"\n"
+ "\"[113]\"\n"
+ "\"[114]\"\n"
+ "\"[115]\"\n"
+ "\"[117]\"\n"
+ "\"[118]\"\n"
+ "\"[119]\"\n"
+ "\"[121]\"\n"
+ "\"[122]\"\n"
+ "\"[123]\"\n"
+ "\"[125]\"\n"
+ "\"[126]\"\n"
+ "\"[127]\"\n"
+ "\"[129]\"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n"
+ "0\n"
+ "4\n"
+ "8\n"
+ "12\n"
+ "16\n"
+ "20\n"
+ "24\n"
+ "28\n"
+ "32\n"
+ "36\n"
+ "40\n"
+ "44\n"
+ "48\n"
+ "52\n"
+ "56\n"
+ "60\n"
+ "64\n"
+ "68\n"
+ "72\n"
+ "76\n"
+ "80\n"
+ "84\n"
+ "88\n"
+ "92\n"
+ "96\n"
+ "100\n"
+ "104\n"
+ "108\n"
+ "112\n"
+ "116\n"
+ "120\n"
+ "124\n"
+ "128\n\n"
+ "1\n"
+ "2\n"
+ "3\n"
+ "5\n"
+ "6\n"
+ "7\n"
+ "9\n"
+ "10\n"
+ "11\n"
+ "13\n"
+ "14\n"
+ "15\n"
+ "17\n"
+ "18\n"
+ "19\n"
+ "21\n"
+ "22\n"
+ "23\n"
+ "25\n"
+ "26\n"
+ "27\n"
+ "29\n"
+ "30\n"
+ "31\n"
+ "33\n"
+ "34\n"
+ "35\n"
+ "37\n"
+ "38\n"
+ "39\n"
+ "41\n"
+ "42\n"
+ "43\n"
+ "45\n"
+ "46\n"
+ "47\n"
+ "49\n"
+ "50\n"
+ "51\n"
+ "53\n"
+ "54\n"
+ "55\n"
+ "57\n"
+ "58\n"
+ "59\n"
+ "61\n"
+ "62\n"
+ "63\n"
+ "65\n"
+ "66\n"
+ "67\n"
+ "69\n"
+ "70\n"
+ "71\n"
+ "73\n"
+ "74\n"
+ "75\n"
+ "77\n"
+ "78\n"
+ "79\n"
+ "81\n"
+ "82\n"
+ "83\n"
+ "85\n"
+ "86\n"
+ "87\n"
+ "89\n"
+ "90\n"
+ "91\n"
+ "93\n"
+ "94\n"
+ "95\n"
+ "97\n"
+ "98\n"
+ "99\n"
+ "101\n"
+ "102\n"
+ "103\n"
+ "105\n"
+ "106\n"
+ "107\n"
+ "109\n"
+ "110\n"
+ "111\n"
+ "113\n"
+ "114\n"
+ "115\n"
+ "117\n"
+ "118\n"
+ "119\n"
+ "121\n"
+ "122\n"
+ "123\n"
+ "125\n"
+ "126\n"
+ "127\n"
+ "129";
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