# Scala Set ++() method with example

• Last Updated : 18 Oct, 2019

The ++() method is utilized to add elements of one set to another set.

Method Definition: def ++(elems: A): Set[A]

Return Type: It returns a new set containing elements of both the sets.

Example #1:

 `// Scala program of ++() ``// method `` ` `// Creating object ``object` `GfG ``{ `` ` `    ``// Main method ``    ``def` `main(args``:``Array[String]) ``    ``{ ``        ``// Creating a set ``        ``val` `s``1` `=` `Set(``1``, ``3``, ``5``) ``         ` `        ``val` `s``2` `=` `Set(``2``, ``4``, ``6``)``         ` `        ``// Applying ++() method ``        ``val` `result ``=` `s``1` `++ s``2``             ` `        ``// Display output``        ``print(result) ``         ` `    ``} ``} `

Output:

```Set(5, 1, 6, 2, 3, 4)
```

Example #2:

 `// Scala program of ++() ``// method `` ` `// Creating object ``object` `GfG ``{ `` ` `    ``// Main method ``    ``def` `main(args``:``Array[String]) ``    ``{ ``        ``// Creating a set ``        ``val` `s``1` `=` `Set(``41``, ``12``, ``23``, ``43``, ``1``, ``72``) ``         ` `        ``val` `s``2` `=` `Set(``1``, ``100``, ``5``, ``12``, ``23``)``         ` `        ``// Applying ++() method ``        ``val` `result ``=` `s``1` `++ s``2``             ` `        ``// Display output``        ``print(result)   ``         ` `    ``} ``} `

Output:

```Set(5, 1, 41, 12, 72, 43, 23, 100)
```

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