IP Address From String In Java Regex

Chapter: Regular Expression Last Updated: 21-07-2016 18:52:12 UTC

Program:

            /* ............... START ............... */
                
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class JavaIPAddressFromString {
	public static void main(String args[]) {
		String IPADDRESS_PATTERN = "(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}"
				+ "(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)";

		Pattern pattern = Pattern.compile(IPADDRESS_PATTERN);
		Matcher matcher = pattern.matcher("sdkfjskdj10.33.45.67fksfksd");
		if (matcher.find()) {
			System.out.println(matcher.group());
		}

	}
}
                /* ............... END ............... */
        

Output

10.33.45.67

Tags

IP Address From String, Regular Expression, Java

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