Please answer these multiple choice questions 1) The new operator:
Please answer these multiple choice questions
1) The new operator:
allocates memory
is used to create an object of a class
associates an object with a variable that names it.
All of the above.
Answer:
2) A method that performs some action other than returning a value is called a __________ method.
null
void
public
private
Answer:
3) The body of a method that returns a value must contain at least one _________ statement.
void
invocation
thows
return
Answer:
4) A variable whose meaning is confined to an object of a class is called:
instance variable
local variable
global variable
none of the above
Answer:
5) A variable whose meaning is confined to a method definition is called an/a
instance variable
local variable
global variable
none of the above
Answer:
6) In Java, a block is delimited by:
( )
/* */
“ “
{ }
Answer:
7) In Java, call-by-value is only used with:
objects
primitive types
this
all of the above
Answer:
8) The parameter this refers to
instance variables
local variables
global variables
the calling object
Answer:
9) When the parameters in a method have the same as instance variables you can differentiate them by using the _____ parameter.
String
hidden
default
this
Answer:
10) Skip
11) Skip
12) Java has a way of officially hiding details of a class definition. To hide details, you mark them as _________.
public
protected
private
all of the above
Answer
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