Question 1

Which of the following statements about arrays are true?
a) An array is a group of variables containing values that all have the same type.
b) Elements are located by index.
c) The length of an array c is determined by the expression c.length() ;.
d) The zeroth element of array c is specified by c[0].

Accepted Answer

A)  A,C,D.
B)  A,B,D.
C)  C,D.
D)  A,B,C,D.E) A) and B)
F) A) and C)

Question 2

Assume array items contains the integer values 0,2,4,6 and 8.Which of the following uses the enhanced for loop to display each value in array items?

Accepted Answer

A)  For (int i = 0;i System.out.prinf("%d%n",items[i]) ;
B)  For (int i : items) System.out.prinf("%d%n",items[i]) ;
C)  For (int i : items) System.out.prinf("%d%n",i) ;
D)  For (int i = 0 : items.length) System.out.prinf("%d%n",items[i]) ;E) None of the above
F) All of the above

Question 3

Consider array items,which contains the values 0,2,4,6 and 8.If method changeArray is called with the method call changeArray(items,items[2]) ,what values are stored in items after the method has finished executing?
Public static void changeArray(int[] passedArray,int value) 
{
PassedArray[value] = 12;
Value = 5;
}

Accepted Answer

A)  0,2,5,6,12.
B)  0,2,12,6,8.
C)  0,2,4,6,5.
D)  0,2,4,6,12.E) All of the above
F) A) and B)

Question 4

In array items,which expression below accesses the value at row 3 and column 4?

Accepted Answer

A)  items[3].[4]
B)  items[3[4]]
C)  items[3][4]
D)  items[3,4]E) All of the above
F) None of the above

Exam 7: Arrays and Arraylists

Assume array items contains the integer values 0,2,4,6 and 8.Which of the following uses the enhanced for loop to display each value in array items?

Correct Answer
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Correct Answer
verified

In array items,which expression below accesses the value at row 3 and column 4?

Correct Answer
verified

Correct Answer
verified

Exam 7: Arrays and Arraylists

Assume array items contains the integer values 0,2,4,6 and 8.Which of the following uses the enhanced for loop to display each value in array items?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

In array items,which expression below accesses the value at row 3 and column 4?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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