ads_clickPractice - 5 Tasks

Answer the questions below

1fill in blank

easy

Complete the code to declare a 2D array of integers with 3 rows and 4 columns.

Java

int[][] matrix = new int[[1]][4];

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Attempts:

3 left

2fill in blank

medium

Complete the code to access the element in the second row and third column of a 2D array named 'grid'.

Java

int value = grid[[1]][2];

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Attempts:

3 left

3fill in blank

hard

Fix the error in the code to correctly initialize a 2D array with 2 rows and 3 columns.

Java

int[][] arr = new int[[1]][3];

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B3, 2

C2, 3

Attempts:

3 left

4fill in blank

hard

Fill both blanks to create a 2D array 'table' with 5 rows and 6 columns and assign the value 10 to the element in the first row and last column.

Java

int[][] table = new int[[1]][[2]];
table[0][[2] - 1] = 10;

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Attempts:

3 left

5fill in blank

hard

Fill all three blanks to create a 2D array 'matrix', assign 7 to the element at row 2, column 3, and print that element.

Java

int[][] matrix = new int[[1]][[2]];
matrix[[3]][3] = 7;
System.out.println(matrix[2][3]);

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Attempts:

3 left