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# Scala Set dropWhile() method with example

The dropWhile() method is utilized to drop the longest prefix of elements from the set that satisfies the stated condition.

Method Definition: def dropWhile(p: (A) => Boolean): Set[A]

Return Type: It returns a set containing all the elements after dropping the longest prefix of elements from the set that satisfies the stated condition.

Example #1:

 `// Scala program of dropWhile() ``// method `` ` `// Creating object ``object` `GfG ``{ `` ` `    ``// Main method ``    ``def` `main(args``:``Array[String]) ``    ``{ ``     ` `        ``// Creating a list ``        ``var` `s``1` `=` `Set(``1``, ``3``, ``5``, ``4``, ``2``) ``         ` `        ``// Print the set``        ``println(s``1``)``         ` `        ``// Applying dropWhile method ``        ``var` `res ``=` `s``1``.dropWhile(x ``=>` `{x ``%` `2` `!``=` `0``}) ``         ` `        ``// Displays output ``        ``println(res) ``     ` `    ``} ``} `

Output:

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

Example #2:

 `// Scala program of dropWhile() ``// method `` ` `// Creating object ``object` `GfG ``{ `` ` `    ``// Main method ``    ``def` `main(args``:``Array[String]) ``    ``{ ``     ` `        ``// Creating a list ``        ``var` `s``1` `=` `Set(``1``, ``3``, ``5``, ``4``, ``2``) ``         ` `        ``// Print the set``        ``println(s``1``)``         ` `        ``// Applying dropWhile method ``        ``var` `res ``=` `s``1``.dropWhile(x ``=>` `true``) ``         ` `        ``// Displays output ``        ``println(res) ``     ` `    ``} ``} `

Output:

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

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