# Scala program to compare two vectors using equals() method

Here, we are going to learn how to compare two vectors using equals() method in Scala programming language?
Submitted by Nidhi, on June 16, 2021 [Last updated : March 11, 2023]

## Scala - Compare Two Vectors

Here, we will create three objects of Vector collection. Then we will compare vectors using the equals() method. The equals() method returns true, if vectors are equal, otherwise it returns false.

The Vector is an immutable data structure. We can access vector elements randomly. It extends an abstract class AbstractSeq and IndexedSeq trait. We use the Vector collection to store a large number of elements.

## Scala code to compare two vectors using equals() method

The source code to compare two vectors using the equals() method is given below. The given program is compiled and executed on the ubuntu 18.04 operating system successfully.

```// Scala program to compare two vectors
// using equals() method

import scala.collection.immutable._

object Sample {
// Main method
def main(args: Array[String]) {
var vector1 = Vector(50, 20, 40, 30, 70);
var vector2 = Vector(10, 20, 30, 40, 50);
var vector3 = Vector(50, 20, 40, 30, 70);

if (vector1.equals(vector2))
println("vector1 and vector2 are equal");
else
println("vector1 and vector2 are not equal");

if (vector1.equals(vector3))
println("vector1 and vector3 are equal");
else
println("vector1 and vector3 are not equal");
}
}
```

## Output

```vector1 and vector2 are not equal
vector1 and vector3 are equal
```

## Explanation

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

```import scala.collection.immutable._
```

And, 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 vector vector using Vector collection. Then we compared vectors using the equals() method and printed the appropriate message on the console screen.