Q:

Kotlin program of integer range using downTo() function

YasminRadwan26
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2022-07-14
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downTo() Function

The downTo() function is used for creating a range in descending order i.e., from the given larger value to the smaller value. The downTo() function is the reverse of the (..) operator and rangeTo() function.

Here, we will demonstrate the example of creating an integer range using the downTo() function.

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YasminRadwan26
2022-07-14
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Example 1:

fun main(args : Array<String>){
	// creating integer ranges 
	// in descending order
	println("Integer range 1:")	
	for(x in 10.downTo(1)){
		println(x)
	}
	println()

	println("Integer range 2:")	
	for(x in 5.downTo(-5)){
		println(x)
	}
	println()
}

Output:

Integer range 1:
10
9
8
7
6
5
4
3
2
1

Integer range 2:
5
4
3
2
1
0
-1
-2
-3
-4
-5

Example 2:

fun main(args : Array<String>){
	// creating integer ranges
	// in descending order
	println("Integer range 1:")	
	for(x in 10.downTo(1) step 2){
		println(x)
	}
	println()

	println("Integer range 2:")	
	for(x in 5.downTo(-5) step 2){
		println(x)
	}
	println()
}

Output:

Integer range 1:
10
8
6
4
2

Integer range 2:
5
3
1
-1
-3
-5

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