Question 40Differentiate between one-dimensional and two-dimensional arrays.

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One-dimensional arrayTwo-dimensional arrayOne-dimensional array stores data in a single row or column.Two-dimensional array stores data in a grid or table, with rows and columns.It uses one index to access array elements.It uses two indices to access array elements.For example,int arr[] = new int[10];It creates a one dimensional array arr which stores 10 elements of int type.For example,int arr[][] = new int [3][3];It creates a two dimensional array which has three rows and three columns to store 3 x 3 = 9 elements of int type.

One-dimensional array	Two-dimensional array
One-dimensional array stores data in a single row or column.	Two-dimensional array stores data in a grid or table, with rows and columns.
It uses one index to access array elements.	It uses two indices to access array elements.
For example, `int arr[] = new int[10];` It creates a one dimensional array arr which stores 10 elements of int type.	For example, `int arr[][] = new int [3][3];` It creates a two dimensional array which has three rows and three columns to store 3 x 3 = 9 elements of int type.

Arrays — Question 46

Question 40