asp.net (?:^|,)(?=[^"]|(")?)"?((?(1)[^"]*|[^,"]*))"?(?=,|$) to java regex

In Java it can be done using the below sample code

import java.util.regex.Matcher;
import java.util.regex.Pattern;

 // String to be scanned to find the pattern.
 String line = "your line where you want to match the regex";
 String pattern = "(?:^|,)(?=[^"]|(")?)"?((?(1)[^"]*|[^,"]*))"?(?=,|$)";

// Create a Pattern object
  Pattern r = Pattern.compile(pattern);

 // Now create matcher object.
    Matcher m = r.matcher(line);
    if (m.find( )) {
         System.out.println("Found value: " + m.group(0) );
         System.out.println("Found value: " + m.group(1) );
         System.out.println("Found value: " + m.group(2) );
      } else {
         System.out.println("NO MATCH");
      }

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for more reference please visit the link below
Java - Regular Expressions
In ASp.Net it can be done with the below sample code
Add a using statement to reference the System.Text.RegularExpressions namespace.

using System.Text.RegularExpressions;
//Call the IsMatch method of the Regex class, as shown in the following example.
// Instance method:

Regex reg = new Regex(@"(?:^|,)(?=[^"]|(")?)"?((?(1)[^"]*|[^,"]*))"?(?=,|$)");
Response.Write(reg.IsMatch(your input string value));

// Static method:
if (!Regex.IsMatch(Your input string value, 
                   @"(?:^|,)(?=[^"]|(")?)"?((?(1)[^"]*|[^,"]*))"?(?=,|$)"))
{
  // Name does not match schema
}

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for more reference please visit the below link
How To: Use Regular Expressions to Constrain Input in ASP.NET
hope this helps.

Just a note... Often times, the issue with converting a regular expression from one language's syntax to another lies in the ability/inability to explain what a given regular expression is meant to do. You may use tools like https://regex101.com/ or Expresso (http://www.ultrapico.com/expresso.htm) help with that, which goes a long way with assisting a conversion effort.

Jitendra Patil;

Your java pattern is giving errors in the editor for quotes. Can you check?

Thanks Mlanda.

in which editor you are checking this, and what is the input you are checking for , can you please provide the same?

I am checking it intellij

this is the one.

If someone can break this, I will grant all the points.