Q:

Scala program to reverse an integer array

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YasminRadwan26
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2022-07-06
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Here, we will create an integer array and then we will copy the elements of the array in reverse order into another array.

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YasminRadwan26
2022-07-06
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Program/Source Code:

The source code to reverse an integer array is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to reverse an integer array

object Sample {  
    def main(args: Array[String]) {  
        var IntArray = Array(11,12,13,14,15)
        var RevArray = new Array[Int](5)
        
        var count1:Int=0
        var count2:Int=0
        
        
        //Reverse an array
        count1=0
        count2=4
        while(count1<5)
        {
            RevArray(count1)=IntArray(count2)
            
            count1=count1+1
            count2=count2-1
        }
        
        println("Array:")
        count1=0
        while(count1<5)
        {
            printf("%d ",IntArray(count1))
            count1=count1+1
        }
        println()
        
        println("Reversed Array:")
        count1=0
        while(count1<5)
        {
            printf("%d ",RevArray(count1))
            count1=count1+1
        }
        println()
    }
}

Output:

Array:
11 12 13 14 15 
Reversed Array:
15 14 13 12 11

Explanation:

In the above program, we used an object-oriented approach to create the program. We created an object Sample, and we defined main() function. The main() function is the entry point for the program.

In the main() function, we created two integer arrays IntArray, RevArray.  The IntArray contains 5 integer elements. Then we copied the elements of IntArray into RevArray in revered order. After that, we printed the elements of both arrays on the console screen.

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