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Yes, the output is different but it doesn't depend on the intrinsic differences between a char[] and a int[].

System.out.println(cr); invokes the println(char[]) of java.io.PrintStream. This...

Arrays are implemented internally in the JVM, you can't extend or override anything about arrays.
Arrays derive from java.lang.Object but they don't override (redefine) the toString() method. So...

Prints 3 null (0 value) characters. The println choosen by compiler is the println(char[] x) that correctly prints each character in the array, then a newline. Default value in char array elements is...