How to print Hollow Diamond Pattern in Kotlin

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How to print Hollow Diamond Pattern in Kotlin ?

Answer

To print a Hollow Diamond Pattern in Kotlin, we use nested loops to manage spaces and stars.

✐ Examples

1 Print Hollow Diamond Pattern in Kotlin

In this example,

We assume the number of rows for the diamond is 5.
We then use nested loops where the outer loop controls the rows and the inner loop manages spaces and stars.
Within the loops, we use conditions to print stars only at specific positions to create the hollow diamond effect.
The outer loop manages the rows of the diamond, incrementing and decrementing based on the midpoint of the diamond.
The inner loop calculates the spaces required to position the stars correctly, ensuring the hollow diamond pattern.
Stars are printed based on conditions to achieve the desired hollow diamond pattern.

Kotlin Program

fun main() {
    val numRows = 5

    for (row in 1..numRows) {
        for (space in 1..numRows - row) {
            print(" ")
        }
        for (star in 1..(2 * row - 1)) {
            if (star == 1 || star == 2 * row - 1) {
                print("*")
            } else {
                print(" ")
            }
        }
        println()
    }

    for (row in numRows - 1 downTo 1) {
        for (space in 1..numRows - row) {
            print(" ")
        }
        for (star in 1..(2 * row - 1)) {
            if (star == 1 || star == 2 * row - 1) {
                print("*")
            } else {
                print(" ")
            }
        }
        println()
    }
}

Output

    *
   * *
  *   *
 *     *
*       *
 *     *
  *   *
   * *
    *

Summary

In this tutorial, we learned How to print Hollow Diamond Pattern in Kotlin language with well detailed examples.