/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
import java.util.regex.*;
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		String s = "something:POST:/some/path/";
		StringBuffer result = new StringBuffer();
		Matcher m = Pattern.compile(":([a-zA-Z]+):").matcher(s);
		while (m.find()) {
		    m.appendReplacement(result, ":*:");
		}
		m.appendTail(result);
		System.out.println(result.toString());
 
	}
}

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