Java – strange tochararray () behavior

I'm trying to use tochararray () and found some strange behavior

Suppose private static final char [] hex_ CHARS =“0123456789abcdef”. tocharArray();

System.out.println(HEX_CHARS);

  /* prints 0123456789abcdef */

 System.out.println("this is HEX_CHARS "+HEX_CHARS); 
  /* prints [C@19821f */

What is the theoretical reason behind this?

Solution

This is because the parameters of println are different in the two calls

The first parameter is called with char [] and the second parameter is called with string, where hex_ Chars is called by Tostring()

Println () has an override method that accepts chararray