How to convert String to character array in Java?

To convert String to char array in Java, call toCharArray method.

Here's how you do it:

String string = "Hello World!";
char[] charArray = string.toCharArray();

// [H, e, l, l, o,  , W, o, r, l, d, !]
System.out.println(java.util.Arrays.toString(charArray));