Part $1$: $6$ points

$1.$ Define and give an example of an object reference.

$2.$ Name three characteristics of objects.

$3.$ Define and give an example of data encapsulation.

$4.$ Define and give an example of a method.

$5.$ What is the difference between an accessor and a mutator method?

$6.$ State the output for the following code:

String myName $=$John Roby$$;

String myName$2=$Richard Blaine$$;

System.out.println$($myName$)$;

System.out.println$($myName$2)$;

myName$2=$ myName;

myName $=$Harper Blaine$$;

System.out.println$($myName$)$;

System.out.println$($myName$2)$;