Question

A jagged array is an array of arrays where each row of an array is made up of an array. Each dimension of a jagged array is a one dimensional array. What is a jagged array?

1) A type of array with multiple dimensions
2) An array with irregular dimensions
3) An array with fixed dimensions
4) An array with dynamic dimensions

Answer 1

A jagged array is an array of arrays with irregular dimensions. Each dimension can have a different length, providing flexibility compared to arrays with fixed dimensions.

Step-by-step explanation:

A jagged array is an array of arrays where each row of the array is made up of a one-dimensional array. It is an array with irregular dimensions. In a jagged array, each dimension can have a different length. This means that the number of elements in each row can vary.

For example, consider a jagged array representing a school's class grades. Each row of the array represents a different class, and the number of students in each class can be different. So, the first row may have 25 elements representing the grades of the students in one class, while the second row may have 30 elements representing the grades of the students in another class.

Jagged arrays are useful when you need to store and manipulate data with varying lengths or dimensions, and they provide flexibility compared to arrays with fixed dimensions.