comp sci final
Authored by Yathin Mrudul
Other
11th Grade
Used 1+ times
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51 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the proper syntax to initialize an empty 6x6 2D String array?
String[] array = new String[6][6];
int[][] array = new int[6][6];
String[][] array = new String[6];
String[][] array = new String[6][6];
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
int[][] grid = new int[5][3]
What is the value of grid[0].length?
0
5
3
15
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 2D array is initialized:
int [][] array = {{1,2,3},{4,5,6},{7,8,9}};
What is the result of array[0][1] + array[2][0]?
10
15
9
5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 2D double array is declared and initialized to track the terrain of a city park. Each value in the 2D array represents the height of a particular latitude and longitude above sea level. The 2D grid represents the map of the part and each entry in the grid represents the height.
With this in mind, the columns are positioned to represent Longitude in the 2D array and Latitude is represented by each row in the 2D array.
The creator of this 2D array would like to look at the height of the city park along the longitude 100.0 - which traversal method would make the most sense in order to do so?
Row-Major Order
Enhanced for loop
Column-Major Order
This isn’t possible given the 2D array.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 2D double array terrainMap is declared and initialized to track the terrain of a city park. Each value in the 2D array represents the height of a particular latitude and longitude above sea level. The 2D grid represents the map of the part and each entry in the grid represents the height.
With this in mind, the columns are positioned to represent Longitude in the 2D array and Latitude is represented by each row in the 2D array.
Which of the following would be a correct way to write the traversal for this 2D array?
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A 2D double array terrainMap is declared and initialized to track the terrain of a city park. Each value in the 2D array represents the height of a particular latitude and longitude above sea level. The 2D grid represents the map of the part and each entry in the grid represents the height.
With this in mind, the columns are positioned to represent Longitude in the 2D array and Latitude is represented by each row in the 2D array.
Which of the following would be the correct way to print out all the indices that are more than 5 feet above sea level?
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What would be a correct way to instantiate this 2D array?
int[][] table = { 1, 0, 10, 0, 3, 8, 38, 0 };
int[][] table = { {1, 0, 10, 0}, {3, 8, 38, 0} };
int[][] table = { {1}, {0}, {10}, {0}, {3}, {8}, {38}, {0} };
int[][] table = { "1, 0, 10, 0", "3, 8, 38, 0" };
int[][] table = new int[1, 0, 10, 0][3, 8, 38, 0];
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