/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
 
/* 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 regex = "<s:message\\b[^>]*?\"code(\\d+)\"[^>]*>";
		String string = string = "Sample input\n"
		 + "    Some text........... <s:message code=\"code1\" arguments=\"${arg1,arg2}\" />..\n"
		 + "    some text  ........\n"
		 + "    some text  ....... <s:message code=\"code2\" \n"
		 + "     />...........";
 
		System.out.println(string.replaceAll(regex, "test$1"));
	}
}

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