0

I'm trying to convert the values of a linked list's nodes into a single string. For example: 

"c" -> "a" -> "t"

So when I use the built in toString method, I get this as an output.

"[c, a, t]"

Where the entire thing is a string. Is there any method that allows me to merge this into a single string, like so?

"cat"
Maroun
  • 94,125
  • 30
  • 188
  • 241
Lang Tran
  • 1
  • 1
  • 1
    Override the `toString` method and use `replaceAll("\\W+", "")` to remove all non [a-zA-Z0-9_] characters. – Maroun Feb 23 '16 at 09:36
  • [`String.join()`](https://docs.oracle.com/javase/8/docs/api/java/lang/String.html#join-java.lang.CharSequence-java.lang.Iterable-) – khelwood Feb 23 '16 at 09:41
  • @MarounMaroun, so I run `super()` in my override method, and then I add the `replaceall` to my override method? – Lang Tran Feb 23 '16 at 19:21

2 Answers2

0

If you use Java 8, you can use joining() collector:

LinkedList<String> strings = new LinkedList<>();
strings.add("c");
strings.add("a");
strings.add("t");

System.out.println(strings.stream().collect(Collectors.joining()));

output: "cat".

Hoopje
  • 12,677
  • 8
  • 34
  • 50
0
        LinkedList<String> list=new LinkedList<String>();
        list.add("c");
        list.add("a");
        list.add("t");
        System.out.println(list.toString().replaceAll("\\[", "").replaceAll("\\]", "").replaceAll("\\, ", ""));
Musaddique S
  • 1,539
  • 2
  • 15
  • 36