Kotlin for Loop

In programming, loops are used to iterate over a set of given statements or perform a certain task repeatedly for a specific number of times. The Kotlin for loop is used to iterate over a range of values or a collection of elements.

Syntax

The syntax for using for loop in Kotlin is as follows:

for (item in collection) {
    // body of the loop
}

Where item is the variable that represents each element in the collection.

Example

Let's say we want to print the numbers from 1 to 10 using a for loop in Kotlin. Here's an example:

for (i in 1..10) {
    println(i)
}

The above code will output the numbers from 1 to 10.

Output

1
2
3
4
5
6
7
8
9
10

Explanation

The above example creates a for loop that iterates over a range of values from 1 to 10 (1..10). In each iteration, the loop prints the value of the variable i, which represents the current element of the iteration.

The body of the loop, which is represented by the println() statement, is executed multiple times until the entire collection has been iterated.

Use

The for loop is commonly used in Kotlin for iterating over a range of values or a collection of elements. It's useful for performing tasks that require the same operation to be executed multiple times.

The for loop can be used in different scenarios, such as:

• Iterating over a specific range of values
• Looping over elements in a collection
• Executing a specific task a specific number of times

Important Points

• The for loop in Kotlin can iterate over a range of values or a collection of elements.
• The loop variable represents the current element of the iteration.
• The body of the loop is executed multiple times until the entire collection has been iterated.
• The for loop is useful for performing repetitive tasks and iterating over a range of values or elements.

Summary

The for loop is an essential construct in Kotlin and is used for iterating over a range of values or a collection of elements. It provides a concise and simple way of executing a specific task repeatedly for a specific number of times. Understanding how to use the for loop in Kotlin is essential for any developer working with the language.