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Kotlin program to find largest element in an array

Kotlin | Largest element in an array: Here, we are going to learn how to find the largest element in a given array in Kotlin programming language?
Submitted by IncludeHelp, on May 05, 2020

Given an array, we have to find the largest element.

Example:

    Input:
    arr = [45, 67, 8, 9, 8, 43, 0, -34, -32, 65]

    Output:
    Largest element: 67

Program to find largest element in an array in Kotlin

package com.includehelp

import java.util.*

//Main Function entry Point of Program
fun main(args: Array<String>) {
    //Input Stream
    val s = Scanner(System.`in`)

    //Input Array Size
    print("Enter number of elements in the array: ")
    val size = s.nextInt()

    //Create Integer array of Given size
    val intArray = IntArray(size)

    //Input array elements
    println("Enter Arrays Elements:")
    for (i in intArray.indices) {
        print("intArray[$i] : ")
        intArray[i] = s.nextInt()
    }

    //Assign First Elements of array as Largest
    var largest = intArray[0]

   for (i in 1 until intArray.size) {
       //compare largest with Array Elements value
        if (largest < intArray[i]) {
            //assign array elements into largest
            largest = intArray[i]
        }
    }

    //Alternatively we can also use max() method of Arrays Class 
    //in kotlin to find maximum Array Elements
    //var largest = intArray.max()

    //Print Array Elements
    println("Array : ${intArray.contentToString()} ")

    //Print Largest Array Value
    println("Largest Elements of Array is : $largest")
}

Output

 Run 1:
 -----
Enter number of elements in the array: 10
Enter Arrays Elements:
intArray[0] : 45
intArray[1] : 67
intArray[2] : 8
intArray[3] : 9
intArray[4] : 8
intArray[5] : 43
intArray[6] : 0
intArray[7] : -34
intArray[8] : -32
intArray[9] : 65
Array : [45, 67, 8, 9, 8, 43, 0, -34, -32, 65]
Largest Elements of Array is : 67
--------
Run 2:
----
Enter number of elements in the array: 6
Enter Arrays Elements:
intArray[0] : 0
intArray[1] : -9
intArray[2] : -45
intArray[3] : -6
intArray[4] : -23
intArray[5] : -87
Array : [0, -9, -45, -6, -23, -87]
Largest Elements of Array is : 0
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