Converting ArrayList of Characters to a String?

Question

How to convert an ArrayList to a String in Java? The toString method returns it as [a,b,c] string - I wa

Answer 1

Using join of a Joiner class:

// create character list and initialize 
List arr = Arrays.asList('a', 'b', 'c');   
String str = Joiner.on("").join(arr);
System.out.println(str);

Use toString then remove , and spaces

import com.google.common.base.Joiner; 

....
 arr = Arrays.asList('h', 'e', 'l', 'l', 'o'); 
// remove [] and spaces 
String str = arr.toString() 
          .substring(1, 3 * str.size() - 1) //3 bcs of commas ,
          .replaceAll(", ", ""); 
System.out.println(str);

Or by using streams:

import java.util.stream.Collectors; 
...
// using collect and joining() method 
String str =  arr.stream().map(String::valueOf).collect(Collectors.joining());