Sorting string alphabetically in linked list(Java)

public class Node { public String name, address ,rel; public int number; public Node next; /* public Node() { this(null,null,null,null,null,null); }*/ public Node(String a,String b,String c,int d) { this(a,b,c,d,null); } public Node(String a,String b,String c,int d, Node e) { name=a; address=b; rel=c; number=d; next=e; } }