How to resolve the algorithm Loops/Foreach step by step in the Kotlin programming language

Published on 22 June 2024 08:30 PM

How to resolve the algorithm Loops/Foreach step by step in the Kotlin programming language

Table of Contents

Problem Statement

Loop through and print each element in a collection in order. Use your language's "for each" loop if it has one, otherwise iterate through the collection in order with some other loop.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Loops/Foreach step by step in the Kotlin programming language

This code is a simple program written in Kotlin programming language that prints the elements of an array of Greek letters.

The program uses the main function as the entry point, and it takes an array of strings as an argument. The array of Greek letters is defined as a constant named greek, and it contains the letters "alpha", "beta", "gamma", and "delta".

The program uses a for loop to iterate over the elements of the array and print them out, separated by a space. The loop variable is named letter, and it represents the current element of the array. The body of the loop uses the print function to print the value of the letter variable, followed by a space.

The program also includes an alternative way to iterate over the elements of the array using the forEach function. The forEach function takes a lambda expression as an argument, which is a function that is executed for each element of the array. In this case, the lambda expression is { print("$it ") }, which is equivalent to the body of the for loop.

The output of the program is:

alpha beta gamma delta 
alpha beta gamma delta 

Source code in the kotlin programming language

// version 1.0.6

fun main(args: Array<String>) {
    val greek = arrayOf("alpha", "beta", "gamma", "delta")
    for (letter in greek) print("$letter ")
    println()
    // or alternatively
    greek.forEach { print("$it ") }
    println()
}


  

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