Check out example codes for "java how to split a string into letters". It will help you in understanding the concepts better.

Code Example 1

//Java program to show the use of Split method (Java 8 and above)
public class SplitString{

  public static void main(String[] args) 
  {
    //Initialize the String which needs to be split
    String str = "Enlighter";
    
    //Use the Split method and store the array of Strings returned in a String array.
    String[] arr = str.split("");
    
    //Printing the characters using for-each loop
    for(String character : arr)
      System.out.print(char);

Code Example 2

String s="abcd";
char[] a=s.toCharArray();

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