How to Iterate over a Two Dimensional Array in Kotlin - Step by Step Examples



How to Iterate over a Two Dimensional Array in Kotlin ?

Answer

To iterate over a Two Dimensional Array in Kotlin, you can use nested loops.



✐ Examples

1 Iterating over a 2D Array of Integers

In this example,

  1. We declare and initialize a 2D array of integers named matrix with dimensions 3x3.
  2. We use nested loops to iterate over the rows and columns of the array.
  3. Inside the inner loop, we access and print each element of the array.

Kotlin Program

fun main() {
    val matrix = arrayOf(arrayOf(0, 1, 2), arrayOf(1, 2, 3), arrayOf(2, 3, 4))
    for (row in matrix) {
        for (element in row) {
            print("$element ")
        }
        println()
    }
}

Output

0 1 2 
1 2 3 
2 3 4 

2 Iterating over a 2D Array of Strings

In this example,

  1. We declare and initialize a 2D array of strings named matrix with dimensions 2x2.
  2. We use nested loops to iterate over the rows and columns of the array.
  3. Inside the inner loop, we access and print each element of the array.

Kotlin Program

fun main() {
    val matrix = arrayOf(arrayOf("Hello", "World"), arrayOf("Kotlin", "Java"))
    for (row in matrix) {
        for (element in row) {
            print("$element ")
        }
        println()
    }
}

Output

Hello World 
Kotlin Java 

Summary

In this tutorial, we learned How to Iterate over a Two Dimensional Array in Kotlin language with well detailed examples.




More Kotlin Arrays Tutorials

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  2. How to Initialize an Array in Kotlin ?
  3. How to Access Array Elements in Kotlin ?
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  7. How to check if an Array is Empty in Kotlin ?
  8. How to check if an Array is Not Empty in Kotlin ?
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  10. How to Get Array Length in Kotlin ?
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  12. How to Iterate Over an Array in Reverse Order in Kotlin ?
  13. How to get the Index of Specified Element in an Array in Kotlin ?
  14. How to check if Specified Element is present in the Array in Kotlin ?
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  18. How to Sort an Array in Descending Order in Kotlin ?
  19. How to create a Two Dimensional Array in Kotlin ?
  20. How to Iterate over a Two Dimensional Array in Kotlin ?
  21. How to create a Three Dimensional Array in Kotlin ?
  22. How to Copy an Array in Kotlin ?
  23. How to Split an Array in Kotlin ?
  24. How to Join Arrays in Kotlin ?
  25. How to check if Two Arrays are Equal in Kotlin ?
  26. How to check if Two Arrays have Same Elements (Regardless of Order) in Kotlin ?
  27. How to Convert an Array of Integers to an Array of Strings in Kotlin ?
  28. How to Convert an Array of Strings to an Array of Integers in Kotlin ?
  29. How to Reverse an Array in Kotlin ?
  30. How to Shuffle an Array in Kotlin ?
  31. How to Rotate Elements in an Array in Kotlin ?
  32. How to Filter Elements of an Array based on a Condition in Kotlin ?
  33. How to Declare an Integer Array in Kotlin ?
  34. How to Declare a Float Array in Kotlin ?
  35. How to Declare a String Array in Kotlin ?
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  37. How to Remove Specific Element from an Array in Kotlin ?
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