How to marshall a string in C?

Casting a Generic as a String?

• Hey I was wondering if someone could help me out here. For some reason whenever I compile this code it says that method add(java.lang.String) does not exist even tho I have the generic declared as a String Palindrome Detector: import java.util.*; public class PalindromeDetector { public static boolean isPalindrome(String input){ if(input.length()==0||input.length()==1)… return true; } if(input.charAt(0)==input.charAt(input.l… return isPalindrome(input.substring(1,input.len… } else{ return false; } } public static String sortPalindromes(String input){ LList<String> pList=new LList<String>(); Scanner sc=new Scanner(input); String returnValue=new String(); while(sc.hasNext()){ String s=sc.next(); if(isPalindrome(s)){ pList.add(s); } } Iterator<String> itr=pList.iterator(); while(itr.hasNext()){ returnValue+=itr.next()+","; } return returnValue.trim(); } } LList: import java.util.*; public class LList <T>{ private Node next; public LList(){ next = null; } private class Node{ T element; Node link; public Node(T element, Node link){ this.element = element; this.link = link; } } private class Iter implements Iterator <T>{ private Node cursor; public Iter(){ cursor = next; } public boolean hasNext(){ if(cursor != null){ return true; } else{ return false; } } public T next(){ if(hasNext()){ T t = cursor.element; cursor = cursor.link; return t; } else{ return null; } } public void remove(){} public Iterator <T> iterator(){ return new Iter(); } public void add(T item){ Node newNode = new Node(item, null); Node t = next; if(next != null){ while(t.link != null){ t = t.link; } t.link = newNode; } else{ next = newNode; } } } }

• Answer:

  I believe you're referring to the add call in this code: while(sc.hasNext()){ String s=sc.next(); if(isPalindrome(s)){ pList.add(s); } } I agree, it does seem like you should be able to do that, since 's' is a String and pList is of type LList<String>, therefore the 'add' method in pList takes a parameter of type String. I couldn't try to compile it though because there are three lines near the top that are cut off (with '...') due to there being no spaces where it could break the line. One tiny bit of advice though, code like this: public boolean hasNext(){ if(cursor != null){ return true; } else{ return false; } } can be simplified to just this: public boolean hasNext(){ return cursor != null; }