Use the Code Below to Answer the Following Questions

question 31

Multiple Choice

Use the code below to answer the following questions. Note that the catch statements in the code are not implemented, but you will not need those details. Assume filename is a String, x is an int, a is a double array and i is an int. Use the comments i1, i2, i3, e1, e2, e3, e4, e5 to answer the questions (i for instruction, e for exception handler) .
try
{
BufferedReader infile = new BufferedReader(new FileReader(filename) ) ; // i1
int x = Integer.parseInt(infile.readLine( ) ) ; // i2
a[++i] = (double) (1 / x) ; // i3
}
catch (FileNotFoundException ex) {...} // e1
catch (NumberFormatException ex) {...} // e2
catch (ArithmeticException ex) {...} // e3
catch (ArrayIndexOutOfBounds ex) {...} // e4
catch (IOException ex) {...} // e5
-An exception that could also arise in the try statement that does not have an associated catch statement is

• A) ClassNotFoundException
• B) IllegalArgumentException
• C) NegativeArraySizeException
• D) NullPointException
• E) OutOfMemoryException

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Definitions:

Dependent Sample Designs

Research designs involving comparisons of measurements from the same group of subjects under different conditions or at different times.

Extraneous Variables

Factors in a study that could undermine the internal validity by influencing the dependent variable in a way not intended by the research.

Independent Variables

Variables in an experiment that are manipulated or changed by the researcher to observe their effect on dependent variables.

Counterbalanced Crossover Design

An experimental design where participants are exposed to multiple conditions in a sequence that is randomized to control for the order effects.