Q:

Scala program to demonstrate the endsWith() method for the sequence of integers

belongs to collection: Scala Sequence Programs

YasminRadwan26
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2022-07-08
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Here, we will create a sequence of integer numbers using Seq collection class. Then we will check sequence is ends with specified elements using endsWith() method. The endsWith() method returns true if the sequence ends with specified numbers otherwise it returns false.

The Seq is a trait. It is used to represent the indexed sequence. It is immutable. It also maintains the insertion order of elements.

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YasminRadwan26
2022-07-08
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Program/Source Code:

The source code to create a sequence of integers is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

// Scala program to demonstrate the
// endsWith() method for sequence of integers

import scala.collection.immutable._

object Sample {
  // Main method
  def main(args: Array[String]) {
    var nums: Seq[Int] = Seq(10, 20, 30, 45, 56, 67, 78);

    if (nums.endsWith(Seq(67, 78)))
      println("Sequence nums ends with (67,78)");
    else
      println("Sequence nums does not ends with (67,78)");
  }
}

Output:

Sequence nums ends with (67,78)

Explanation:

Here, we used an object-oriented approach to create the program. And, we imported Collection classes using below statement,

import scala.collection.immutable._

Here, we also created a singleton object Sample and defined the main() function. The main() function is the entry point for the program.

In the main() function, we created a sequence nums using Seq collection. Then we checked the last two numbers using endsWith() method and printed the appropriate message on the console screen.

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