# Converts a char array to a Set : Set « Collections Data Structure « Java

- Java
- Collections Data Structure
- Set

Converts a char array to a Set

/*
* The contents of this file are subject to the Sapient Public License
* Version 1.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
* http://carbon.sf.net/License.html.
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
* the specific language governing rights and limitations under the License.
*
* The Original Code is The Carbon Component Framework.
*
* The Initial Developer of the Original Code is Sapient Corporation
*
* Copyright (C) 2003 Sapient Corporation. All Rights Reserved.
*/
**import** java.util.ArrayList;
**import** java.util.HashSet;
**import** java.util.List;
**import** java.util.Set;
**import** java.util.StringTokenizer;
/**
* <p>Utilities for strings.</p>
*
*
* Copyright 2002 Sapient
* @since carbon 1.0
* @author Greg Hinkle, May 2002
* @version $Revision: 1.5 $($Author: dvoet $ / $Date: 2003/05/05 21:21:24 $)
*/
**public** **class** StringUtil {
/**
* <p> Converts a string to a Set. Breaks the string to characters and store
* each character in a Set.
*
* @param string the string to convert
* @return a <code>Set</code> containing all characters in the text string parameter
*/
**public** **static** Set convertToSet(String string) {
// Result hashset
Set resultSet = **new** HashSet();
**for** (**int** i = 0; i < string.length(); i++) {
resultSet.add(**new** Character(string.charAt(i)));
}
// Return result
**return** resultSet;
}
/**
* <p> Converts a char array to a Set. Puts all characters in the array to a Set.
*
* @param charArray an array of <CODE>char</CODE>s
* @return a <code>set</code> containing all characters in the char array
*/
**public** **static** Set convertToSet(**char**[] charArray) {
// Result hashset
Set resultSet = **new** HashSet();
**for** (**int** i = 0; i < charArray.length; i++) {
resultSet.add(**new** Character(charArray[i]));
}
// Return result
**return** resultSet;
}
}

### Related examples in the same category

1. | Set, HashSet and TreeSet | | |

2. | Things you can do with Sets | | |

3. | Set operations: union, intersection, difference, symmetric difference, is subset, is superset | | |

4. | Set implementation that use == instead of equals() | | |

5. | Set that compares object by identity rather than equality | | |

6. | Set union and intersection | | |

7. | Set with values iterated in insertion order. | | |

8. | Putting your own type in a Set | | |

9. | Use set | | |

10. | Another Set demo | | |

11. | Set subtraction | | |

12. | Working with HashSet and TreeSet | | |

13. | TreeSet Demo | | |

14. | Show the union and intersection of two sets | | |

15. | Demonstrate the Set interface | | |

16. | Array Set extends AbstractSet | | |

17. | Sync Test | | |

18. | Set Copy | | |

19. | Set and TreeSet | | |

20. | Tail | | |

21. | What you can do with a TreeSet | | |

22. | Remove all elements from a set | | |

23. | Copy all the elements from set2 to set1 (set1 += set2), set1 becomes the union of set1 and set2 | | |

24. | Remove all the elements in set1 from set2 (set1 -= set2), set1 becomes the asymmetric difference of set1 and set2 | | |

25. | Get the intersection of set1 and set2, set1 becomes the intersection of set1 and set2 | | |

26. | Extend AbstractSet to Create Simple Set | | |

27. | Int Set | | |

28. | One Item Set | | |

29. | Small sets whose elements are known to be unique by construction | | |

30. | List Set implements Set | | |

31. | Converts a string to a Set | | |

32. | Implements the Set interface, backed by a ConcurrentHashMap instance | | |

33. | An IdentitySet that uses reference-equality instead of object-equality | | |

34. | An implementation of the java.util.Stack based on an ArrayList instead of a Vector, so it is not synchronized to protect against multi-threaded access. | | |

35. | A thin wrapper around a List transforming it into a modifiable Set. | | |

36. | A thread-safe Set that manages canonical objects | | |

37. | This program uses a set to print all unique words in System.in | | |

38. | Indexed Set | | |

39. | An ObjectToSet provides a java.util.Map from arbitrary objects to objects of class java.util.Set. | | |

40. | Sorted Multi Set | | |

41. | Fixed Size Sorted Set | | |

42. | Set operations | | |

43. | A NumberedSet is a generic container of Objects where each element is identified by an integer id. | | |

44. | Set which counts the number of times a values are added to it. | | |

45. | Set which counts the number of times a values are added to it and assigns them a unique positive index. | | |

46. | Indexed Set | | |

47. | A set acts like array. | | |

48. | Implements a Bloom filter. Which, as you may not know, is a space-efficient structure for storing a set. | | |

49. | Implementation of disjoint-set data structure | | |

50. | Call it an unordered list or a multiset, this collection is defined by oxymorons | | |