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Consider these class declarations:
Which is a true statement?
I Teacher inherits the constructors of Person. II Teacher can add new methods and private instance variables. III Teacher can override existing private methods of Person.
(A) I only
(B) II only
(C) III only
(D) I and II only
(E) II and III only
Use the declarations below for Questions.
A program that tests these classes has the following declarations and assignments:
How many of the above lines of code are incorrect?
What types of species can be separated by HPLC but not by GC?
Refer to the following code fragment:
double answer $=13 /$
System. out.println("13 / 5 = " + answer) ;
The output is
$13 / 5=2.0$
The programmer intends the output to be
$13 / 5=2.6$
Which of the following replacements for the first line of code will not fix the problem?
(A) double answer = (double) 13 / 5;
(B) double answer = 13 / (double) 5;
(C) double answer = 13.0 / 5;
(D) double answer $=13 / 5.0 ;$
(E) double answer = (double) (13 / 5) ;
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