KOTLIN: Range - Revision history

Unknown user at 04:08, 29 July 2022

2022-07-29T04:08:19Z

← Older revision		Revision as of 04:08, 29 July 2022
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	Rentang Kotlin ditentukan oleh dua nilai titik akhir yang keduanya termasuk dalam rentang. Rentang Kotlin dibuat dengan fungsi rangeTo(), atau cukup menggunakan operator downTo atau (. .). Operasi utama pada range adalah berisi, yang biasanya digunakan dalam bentuk operator in dan !in.		Rentang Kotlin ditentukan oleh dua nilai titik akhir yang keduanya termasuk dalam rentang. Rentang Kotlin dibuat dengan fungsi rangeTo(), atau cukup menggunakan operator downTo atau (. .). Operasi utama pada range adalah berisi, yang biasanya digunakan dalam bentuk operator in dan !in.

			Rentang Kotlin ditentukan oleh dua nilai titik akhir yang keduanya termasuk dalam rentang. Rentang Kotlin dibuat dengan fungsi rangeTo(), atau cukup menggunakan operator downTo atau (. .). Operasi utama pada range adalah berisi, yang biasanya digunakan dalam bentuk operator in dan !in.

			Rentang Kotlin ditentukan oleh dua titik akhir yang keduanya termasuk dalam rentang waktu. Rentang Kotlin dibuat dengan fungsi rangeTo(), atau cukup menggunakan operator downTo atau (. .). Operasi utama pada range adalah berisi, yang biasanya digunakan dalam bentuk operator di dan !in.


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	Both the ends of the range are always included in the range which means that the 1..4 expression corresponds to the values 1,2,3 and 4.		Both the ends of the range are always included in the range which means that the 1..4 expression corresponds to the values 1,2,3 and 4.

			Kedua ujung rentang selalu disertakan dalam rentang yang berarti bahwa ekspresi 1.4 sesuai dengan nilai 1,2,3 dan 4.

			Kedua ujung rentang selalu disertakan dalam rentang yang berarti bahwa ekspresi 1.4 sesuai dengan nilai 1,2,3 dan 4.

	Kedua ujung rentang selalu disertakan dalam rentang yang berarti bahwa ekspresi 1.4 sesuai dengan nilai 1,2,3 dan 4.		Kedua ujung rentang selalu disertakan dalam rentang yang berarti bahwa ekspresi 1.4 sesuai dengan nilai 1,2,3 dan 4.
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	Untuk membuat rentang Kotlin, kami memanggil fungsi rangeTo() pada nilai awal rentang dan memberikan nilai akhir sebagai argumen.		Untuk membuat rentang Kotlin, kami memanggil fungsi rangeTo() pada nilai awal rentang dan memberikan nilai akhir sebagai argumen.

			Untuk membuat rentang Kotlin, kami memanggil fungsi rangeTo() pada nilai awal rentang dan memberikan nilai akhir sebagai argumen.

			Untuk membuat rentang Kotlin, kami memanggil fungsi rangeTo() pada awal rentang dan memberikan nilai akhir sebagai argumen.


	===Example===		===Example===

Unknown user at 03:51, 29 July 2022

2022-07-29T03:51:22Z

← Older revision		Revision as of 03:51, 29 July 2022
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	==Kotlin until() Function==		==Kotlin until() Function==

			The function until() can be used to create a range but it will skip the last element given.

			Fungsi hingga() dapat digunakan untuk membuat rentang tetapi akan melewati elemen terakhir yang diberikan.

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	1		1
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	We can use first, last and step properties of a range to find the first, the last value or the step of a range.		We can use first, last and step properties of a range to find the first, the last value or the step of a range.

			Kita dapat menggunakan properti pertama, terakhir, dan langkah dari suatu rentang untuk menemukan nilai pertama, nilai terakhir, atau langkah dari suatu rentang.

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	5		5
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	The filter() function will return a list of elements matching a given predicate:		The filter() function will return a list of elements matching a given predicate:

			Fungsi filter() akan mengembalikan daftar elemen yang cocok dengan predikat yang diberikan:


	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	[2, 4, 6, 8, 10]		[2, 4, 6, 8, 10]
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	The distinct() function will return a list of distinct values from a range having repeated values:		The distinct() function will return a list of distinct values from a range having repeated values:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	[1, 2, 4, 6, 10]		[1, 2, 4, 6, 10]
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	There are many other useful functions we can apply to our range, like min, max, sum, average, count:		There are many other useful functions we can apply to our range, like min, max, sum, average, count:

			Ada banyak fungsi berguna lainnya yang dapat kita terapkan pada jangkauan kita, seperti min, max, sum, average, count:

	===Example==		===Example==
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	}		}

	~~When you run the above~~ Kotlin ~~program~~, ~~it will generate the following~~ output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	1		1

Unknown user at 03:47, 29 July 2022

2022-07-29T03:47:32Z

← Older revision		Revision as of 03:47, 29 July 2022
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	Kotlin range is defined by its two endpoint values which are both included in the range. Kotlin ranges are created with rangeTo() function, or simply using downTo or (. .) operators. The main operation on ranges is contains, which is usually used in the form of in and !in operators.		Kotlin range is defined by its two endpoint values which are both included in the range. Kotlin ranges are created with rangeTo() function, or simply using downTo or (. .) operators. The main operation on ranges is contains, which is usually used in the form of in and !in operators.

			Rentang Kotlin ditentukan oleh dua nilai titik akhir yang keduanya termasuk dalam rentang. Rentang Kotlin dibuat dengan fungsi rangeTo(), atau cukup menggunakan operator downTo atau (. .). Operasi utama pada range adalah berisi, yang biasanya digunakan dalam bentuk operator in dan !in.


	==Example==		==Example==
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	Both the ends of the range are always included in the range which means that the 1..4 expression corresponds to the values 1,2,3 and 4.		Both the ends of the range are always included in the range which means that the 1..4 expression corresponds to the values 1,2,3 and 4.

			Kedua ujung rentang selalu disertakan dalam rentang yang berarti bahwa ekspresi 1.4 sesuai dengan nilai 1,2,3 dan 4.

	==Creating Ranges using rangeTo()==		==Creating Ranges using rangeTo()==

	To create a Kotlin range we call rangeTo() function on the range start value and provide the end value as an argument.		To create a Kotlin range we call rangeTo() function on the range start value and provide the end value as an argument.

			Untuk membuat rentang Kotlin, kami memanggil fungsi rangeTo() pada nilai awal rentang dan memberikan nilai akhir sebagai argumen.

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	1		1
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	The rangeTo() is often called in its operator form ... So the above code can be re-written using .. operator as follows:		The rangeTo() is often called in its operator form ... So the above code can be re-written using .. operator as follows:

			RangeTo() sering disebut dalam bentuk operatornya ... Jadi kode di atas dapat ditulis ulang menggunakan .. operator sebagai berikut:

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	1		1
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	If we want to define a backward range we can use the downTo operator:		If we want to define a backward range we can use the downTo operator:

			Jika kita ingin mendefinisikan rentang mundur, kita dapat menggunakan operator downTo:

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	4		4
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	We can use step() function to define the distance between the values of the range. Let's have a look at the following example:		We can use step() function to define the distance between the values of the range. Let's have a look at the following example:

			Kita dapat menggunakan fungsi step() untuk menentukan jarak antara nilai-nilai rentang. Mari kita lihat contoh berikut:

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	1		1
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	Ranges can be created for characters like we have created them for integer values.		Ranges can be created for characters like we have created them for integer values.

			Rentang dapat dibuat untuk karakter seperti kita telah membuatnya untuk nilai integer.

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	a		a
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	The function reversed() can be used to reverse the values of a range.		The function reversed() can be used to reverse the values of a range.

			Fungsi reversed() dapat digunakan untuk membalikkan nilai suatu range.

	===Example===		===Example===
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	When you run the above Kotlin program, it will generate the following output:		When you run the above Kotlin program, it will generate the following output:

			Ketika Anda menjalankan program Kotlin di atas, itu akan menghasilkan output berikut:

	5		5
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	==Kotlin until() Function==		==Kotlin until() Function==

	~~The function until() can be used to create a range but it will skip the last element given.~~

	===Example===		===Example===

Unknown user at 00:13, 23 July 2022

2022-07-23T00:13:12Z

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2022-07-18T01:37:42Z

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Sumber: https://www.tutorialspoint.com/kotlin/kotlin_ranges.htm

Kotlin range is defined by its two endpoint values which are both included in the range. Kotlin ranges are created with rangeTo() function, or simply using downTo or (. .) operators. The main operation on ranges is contains, which is usually used in the form of in and !in operators.

Example
1..10 // Range of integers starting from 1 to 10

a..z // Range of characters starting from a to z

A..Z // Range of capital characters starting from A to Z
Both the ends of the range are always included in the range which means that the 1..4 expression corresponds to the values 1,2,3 and 4.

Creating Ranges using rangeTo()
To create a Kotlin range we call rangeTo() function on the range start value and provide the end value as an argument.

Example
fun main(args: Array<String>) {
for ( num in 1.rangeTo(4) ) {
println(num)
}
}
When you run the above Kotlin program, it will generate the following output:

1
2
3
4
Creating Ranges using .. Operator
The rangeTo() is often called in its operator form ... So the above code can be re-written using .. operator as follows:

Example
fun main(args: Array<String>) {
for ( num in 1..4 ) {
println(num)
}
}
When you run the above Kotlin program, it will generate the following output:

1
2
3
4
Creating Ranges using downTo() Operator
If we want to define a backward range we can use the downTo operator:

Example
fun main(args: Array<String>) {
for ( num in 4 downTo 1 ) {
println(num)
}
}
When you run the above Kotlin program, it will generate the following output:

4
3
2
1
Kotlin step() Function
We can use step() function to define the distance between the values of the range. Let's have a look at the following example:

Example
fun main(args: Array<String>) {
for ( num in 1..10 step 2 ) {
println(num)
}
}
When you run the above Kotlin program, it will generate the following output:

1
3
5
7
9
Kotlin range of Characters
Ranges can be created for characters like we have created them for integer values.

Example
fun main(args: Array<String>) {
for ( ch in 'a'..'d' ) {
println(ch)
}
}
When you run the above Kotlin program, it will generate the following output:

a
b
c
d
Kotlin reversed() Function
The function reversed() can be used to reverse the values of a range.

Example
fun main(args: Array<String>) {
for ( num in (1..5).reversed() ) {
println(num)
}
}
When you run the above Kotlin program, it will generate the following output:

5
4
3
2
1
Kotlin until() Function
The function until() can be used to create a range but it will skip the last element given.

Example
fun main(args: Array<String>) {
for ( num in 1 until 5 ) {
println(num)
}
}
When you run the above Kotlin program, it will generate the following output:

1
2
3
4
The last, first, step Elements
We can use first, last and step properties of a range to find the first, the last value or the step of a range.

Example
fun main(args: Array<String>) {
println((5..10).first)
println((5..10 step 2).step)
println((5..10).reversed().last)
}
When you run the above Kotlin program, it will generate the following output:

5
2
5
Filtering Ranges
The filter() function will return a list of elements matching a given predicate:

Example
fun main(args: Array<String>) {
val a = 1..10
val f = a.filter { T -> T % 2 == 0 }

println(f)
}
When you run the above Kotlin program, it will generate the following output:

[2, 4, 6, 8, 10]
Distinct Values in a Range
The distinct() function will return a list of distinct values from a range having repeated values:

Example
fun main(args: Array<String>) {
val a = listOf(1, 1, 2, 4, 4, 6, 10)

println(a.distinct())
}
When you run the above Kotlin program, it will generate the following output:

[1, 2, 4, 6, 10]
Range Utility Functions
There are many other useful functions we can apply to our range, like min, max, sum, average, count:

Example
fun main(args: Array<String>) {
val a = 1..10

println(a.min())
println(a.max())
println(a.sum())
println(a.average())
println(a.count())
}
When you run the above Kotlin program, it will generate the following output:

1
10
55
5.5
10
Quiz Time (Interview & Exams Preparation)
Q 1 - Which of the following is true about Kotlin Ranges?

A - Kotlin range is a sequence of values defined by a start, an end, and a step.

B - Kotlin range can be created using the rangeTo() and downTo() functions or the .. operator.

C - We can use ranges for any comparable type.

D - All of the above

Q 2 - What will be the output of the following program:

fun main(args: Array<String>) {
val a = 1..20

println(a.average())
}
A - This will print 10.5

B - This will raise just a warning

C - Compilation will stop with error

D - None of the above

Q 2 - What will be the output of the following program:

fun main(args: Array<String>) {
val a = 1..20

if( 3 in a){
print( true )
}else{
print( false )
}
}
A - true

B - false

C - Compilation will stop with error

D - None of the above

==Refernsi==

* https://www.tutorialspoint.com/kotlin/kotlin_ranges.htm