Q:

Scala program to print the index of the last occurrence of item using lastIndexOf() method

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YasminRadwan26
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2022-07-06
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Here, we will create an array of integer elements. Then we will use the lastIndexOf() method to get the index of the last occurrence of a given item in the array.

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YasminRadwan26
2022-07-06
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Program/Source Code:

The source code to print the index of the last occurrence of an item using the lastIndexOf() method is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to print the index of the
// last occurrence of item using lastIndexOf() method

object Sample {
  def main(args: Array[String]) {
    var arr = Array(1, 2, 3, 2, 3);
    var index: Int = 0;

    index = arr.lastIndexOf(3);
    printf("Index of last occurrence of value '3' is: %d\n", index);
  }
}

Output:

Index of last occurrence of value '3' is: 4

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 an array of integers. Then we used the lastIndexOf() method to get the index of the last occurrence of item 3 in the array. After that, we printed the result on the console screen.

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