How to convert a String array to char array in Java

Question

We are given an array of Strings and what we require is a char[], i.e, array of all characters in all the Strings For example:

Input: [i, love, you]

output:

Answer 1

public static void main(String[] args)
{
    String sentence="Gokul Krishna is class leader";
    String[] array=sentence.split("\\s");
    int counter;
    //String word = new String();
    for(String word:array)
    {
        counter=0;
        char[] wordArray=word.toCharArray();
        for(int i=0;i