Utility Classes in Collection Examples | 2022 | Java Part -92
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Utility Classes in Collection:-
Utility Classes Like helper Classes it help to perform common operation.
Collection Framework have two utility Classes.
1.Arrays Class: -
Arrays Class provide common method() for Array
Arrays Class work for array but it’s part of collection.
Int kk[]={3,2,4,1};
Arrays.sort(kk);
Hera we get sorted array value.
2. Collections Class: -
Collections Class provide some utility methods we can use those methods in any collection class.
Collections Class present inside java.util package.
Here we get All Common method.
For few collection classes don’t have there own sorting methods
Ex. All List Implemented Classes And Queue Classes.
If we want to sort ArrayList then we can use Collections Class Sort Method and perform sorting.
Ex:- Collections.sort(obj1);
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