java - LinkedList to a String -

java - LinkedList to a String -

how convert linkedlist such as:

5=>2=>2=>1

to string such

"1225"

i kind of new java, guess pop list , utilize stringbuilder. not sure how utilize stringbuilder correctly.

public string tostring() { stringbuilder sb = new stringbuilder(); for(int i=0; <getnumberofdigits(); i++) { sb.append(list.pop()); } string toreturn = sb.tostring(); homecoming toreturn; }

edit: not trying sort list, wanted print out in reverse order.

the stringbuilder api documentation available here. need create , phone call append method. can convert using tostring.

stringbuilder string = new stringbuilder(); iterator<?> = list.descendingiterator(); while (it.hasnext()) { string.append(it.next()); } system.out.println(string);

java