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Scala Set exists() method with example
• Last Updated : 18 Oct, 2019

The exists() method is utilized to test whether a predicate holds for some of the elements of the set or not.

Method Definition: def exists(p: (A) => Boolean): Boolean

Return Type: It returns true if the stated predicate holds true for some elements of the set else it returns false.

Example #1:

 `// Scala program of exists() ``// method `` ` `// Creating object ``object` `GfG ``{ `` ` `    ``// Main method ``    ``def` `main(args``:``Array[String]) ``    ``{ ``        ``// Creating a list ``        ``val` `s``1` `=` `Set(``1``, ``2``, ``3``, ``4``, ``5``) ``         ` `        ``// Applying exists method ``        ``val` `result ``=` `s``1``.exists(y ``=>` `{y ``%` `3` `==` `0``}) ``         ` `        ``// Displays output ``        ``println(result) ``         ` `    ``} ``} `
Output:
```true
```

Example #2:

 `// Scala program of exists() ``// method `` ` `// Creating object ``object` `GfG ``{ `` ` `    ``// Main method ``    ``def` `main(args``:``Array[String]) ``    ``{ ``        ``// Creating a list ``        ``val` `s``1` `=` `Set(``1``, ``2``, ``3``, ``4``, ``5``) ``         ` `        ``// Applying exists method ``        ``val` `result ``=` `s``1``.exists(y ``=>` `{y ``%` `7` `==` `0``}) ``         ` `        ``// Displays output ``        ``println(result) ``         ` `    ``} ``} `
Output:
```false
```

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