I need some help with answering some questions for Java Programing: (1) Which of
ID: 3805551 • Letter: I
Question
I need some help with answering some questions for Java Programing:
(1) Which of the following declares an array of int named hits?
(a) int hits; (b) new int hits[];
(c) int[] hits; (d) int hits = int[]
int[] array1 = { 1, 3, 5, 7 }
for(int i = 0; i < array.length; i++) {
if(array1[i] > 5)
System.out.println(i + " " + array1[i]);
}
(2) Which indices are in bounds for the array array1, given the declaration above?
(a) 0 , 1 , 2 , 3 (b) 1 , 3 , 5 , 7
(c) 1 , 2 , 3 , 4 (d) 0 , 1 , 3 , 5
(3) What is the output of the code fragment above?
(a) 0 3 (b) 7 3
(c) 3 7 (d) 5 1
int[] x = new int[10];
x[0] = 34;
x[1] = 88;
System.out.println(x[0] + " " + x[1] + " " + x[10]);
(4) What is the output of the code fragment above?
(a) 34 88 0 (b) 0 34 88
(c) 34 88 88 (d) This program throws an exception.
(5) A " matrix " is a two - dimensional array.
(a) True (b) False
(6) The following declaration int[ ][ ] senators = new int[50][2]; is an example of a " multidimensional array. "
(a) True (b) False
(7) Given an array score[x] " x " can be referred to as either the " index " or " subscript " of the array.
(a) True (b) False
(8) The following is a legal array declaration: int[ ] intArray = new int[ ];
(a) True (b) False
Explanation / Answer
(1) Which of the following declares an array of int named hits?
Answer: (c) int[] hits;
(2) Which indices are in bounds for the array array1, given the declaration above?
Answer: (a) 0 , 1 , 2 , 3
(3) What is the output of the code fragment above?
Answer:(c) 3 7
(4) What is the output of the code fragment above?
Answer: (a) 34 88 0
(5) A " matrix " is a two - dimensional array.
Answer: a) True
(6) The following declaration int[ ][ ] senators = new int[50][2]; is an example of a " multidimensional array. "
Answer: (a) True
(7) Given an array score[x] " x " can be referred to as either the " index " or " subscript " of the array.
Answer: a) True
(8) The following is a legal array declaration: int[ ] intArray = new int[ ];
Answer: a) True
Array declaration should be int[ ] intArray = new int[10 ];