Question

How to create ArrayList of characters from string in Java

Answer 1

import java.util.ArrayList;
import java.util.Arrays;
 
public class MyClass {
    public static void main(String args[]) {
       String s = "Java";
        
       ArrayList<Character> al = new ArrayList<Character>();
 
       for(int i = 0; i < s.length(); i++){
           al.add(s.charAt(i));
       }
        
       System.out.println(Arrays.toString(al.toArray()));
    }
}
 
 
 
 
/*
run:
   
[J, a, v, a]
   
*/

 

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Answer 2

import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;

public class MyClass {
    public static void main(String args[]) {
        String s = "java";

        List<String> list = new ArrayList<String>(Arrays.asList(s.split("")));

        System.out.println(list);  
    }
}




/*
run:

[j, a, v, a]

*/

 

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