Basic Array Questions
As we said above, Array is one of the most important and fundamental data structures in the Java programming language. So, in this section, we have covered all the basic Array-based Java exercises.
1. Java Program to Add Elements in an Array.
Input: Array: [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ] Element: 50 Output: Array: [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 50 ] Explanation: Adding Element in the Array
2. Java Program to Print a 2D Array.
Output:
[[ 1 , 2 , 3 ]
[ 4 , 5 , 6 ]
[ 7 , 8 , 9]]
3. Array Program to Add Two Matrices
Input: A[][] = [[ 1 , 2 ], [ 3 , 4 ]] B[][] = [[ 1 , 1 ], [ 1 , 1 ]] Output: Result = [[ 2 , 3 ] [ 4 , 5 ]] Explanation: Adding Elements of both the Matrices and Printing the Result.
4. Java Array Program to Find the Transpose
Input: [ [ 1, 2, 3 ] [ 4, 5, 6 ] [ 7, 8, 9 ] ] Output: [ [ 1, 4, 7] [ 2, 5, 8] [ 3, 6, 9] ] Explanation: Transpose of a matrix is obtained by changing rows to columns and columns to rows.
5. Java Array Program to Find the Determinant
Input: [ 1 , -3 , -2 ] [ -1 , 2 , 1 ] [ 1 , 0 , -2 ] Output: 3 Explanation: 1*(-4-0) + 3*(2-1) + (-2)*(0-2) = 3
6. Java Array Program For Array Rotation
Input: arr[] = {1, 2, 3, 4, 5, 6, 7} , d = 3 Output: 4 5 6 7 1 2 3 Explanation: Taking the element from the beginning from the front and adding it to the end of the array
Java Array Exercise
An array is a group of elements with similar data types that are bound together as one. The array allows us to store and manipulate a collection of elements together. Mastering arrays is essential for any Java developer, as it provides a solid foundation for more complex data structures and algorithms. In this article, we will learn about Java Array with Java Practice Problems.
In this practice blog, we will dive into Java Array exercises to help you strengthen your Array skills. It is both beginner and experienced-friendly. So, if you are ready to tackle some Java array practice problems and take your coding skills to the next level, let’s get started!
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