kotlin键值对数组

Given an array and an element, we have to check whether array contains the given element or not.

给定一个数组和一个元素，我们必须检查数组是否包含给定的元素。

Example:

例：

    Input:
arr = [34, 56, 7, 8, 21, 0, -6]
element to check: 21
Output:
21 found at 4 index

程序检查数组是否在Kotlin中包含给定值 (Program to check if an array contains a given value in Kotlin)

package com.includehelp
import java.util.*
//Main Function entry Point of Program
fun main(args: Array<String>) {
//Input Stream
val scanner = Scanner(System.`in`)
//Input Array Size
print("Enter number of elements in the array: ")
val size = scanner.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] = scanner.nextInt()
}
//Print All Array Elements
println("Array : ${intArray.contentToString()} ")
//input integer no to be find in array
print("Enter Integer Number to be Searched in Array : ")
val num = scanner.nextInt()
var isFound= false
var itemAt = 0
//Search Given number into Array
for(item in intArray){
if(item==num){
isFound=true
itemAt =intArray.indexOf(item)
break
}
}
//Alternatively we can also use contains(num) method of Arrays Class
//in kotlin to find specific elements Array or not
//var isFound = intArray.contains(num)
if(isFound){
println("$num found in Arrays at Index $itemAt")
}
else{
System.err.println("$num Not found in Arrays !!")
}
}

Output

输出量

Run 1:
-----
Enter number of elements in the array: 7
Enter Arrays Elements:
intArray[0] : 34
intArray[1] : 56
intArray[2] : 7
intArray[3] : 8
intArray[4] : 21
intArray[5] : 0
intArray[6] : -6
Array : [34, 56, 7, 8, 21, 0, -6]
Enter Integer Number to be Searched in Array : 21
21 found in Arrays at Index 4
--------
Run 2:
----
Enter number of elements in the array: 7
Enter Arrays Elements:
intArray[0] : 3
intArray[1] : 4
intArray[2] : 5
intArray[3] : 7
intArray[4] : 90
intArray[5] : -89
intArray[6] : 5
Array : [3, 4, 5, 7, 90, -89, 5]
Enter Integer Number to be Searched in Array : 345
345 Not found in Arrays !!

翻译自: https://www.includehelp.com/kotlin/check-if-an-array-contains-a-given-value.aspx

kotlin键值对数组