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HashSet set = [1,2,3] //Append a value at the end of the set set.add(4) == [1,2,3,4] //Get an element at a specified location set.getAt(2) //Contains an element set.contains(4) == true //Check whether the set is empty set.isEmpty() == false //Remove an element set.minus(3) //Add an element set.plus(5) //Size of the set set.size() == 4 //Max and min in the set set.max() == 4 set.min() == 1 //Find for the first element matching the condition set.find{ it > 1 } //returns 2 //Find for all elements matching the condition set.findAll{ it > 1 } //returns [2,3,4] //Returns true if all elements match set.every { it < 5 } //Returns true if any element matches set.any { it > 2 } HashSet set1 = ["a", "b", "c", "d", "e"] //Find index of 1st element matching criteria set1.findIndexOf { it in ["c", "e", "g"] } //returns 2 //Index returned set1.indexOf("c") == 2 //Sum of all the elements set.sum() == 21 set1.sum() == "abcde" //Join the elements set.join('-') == "1-2-3" HashSet set2 = [["a", "b"],["c", "d"]] set2.sum() == ["a", "b", "c", "d"] |
List
All the methods that apply to a Set are applicable to a List too. Some additional methods for List with examples are explained below. See here for all the methods applicable for a List.
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def list = [1,2,3] //AppendReverse a value at the end of the list list.add(4list list.reverse() == [14,2, 3,4] list == [1,2,3,4] //Contains an element list.contains(4) == true //Get an element at a specified location list.get(2) == 3 //Check whether the list is empty list.isEmpty() == false //Remove an element list.minus(3) == [1, 2, 4] //Add an element list.plus(5) == [1, 2, 3, 4, 5] //Reverse a list list.reverse() == [4, 3, 2, 1] //Size of the list list.size() == 4 //Max and min in the list list.max() == 4 list.min() == 1 //Find for the first element matching the condition [1,2,3].find{ it > 1 } //returns 2 //Find for all elements matching the condition [1,2,3].findAll{ it > 1 } //returns [2,3] //Find index of 1st element matching criteria ["a", "b", "c", "d", "e"].findIndexOf { it in ["c", "e", "g"] } //returns 2 //Index returned ["a", "b", "c", "d", "c"].indexOf("c") == 2 //Returns true if all elements match [1, 2, 3].every { it < 5 } //Returns true if any element matches [1, 2, 3].any { it > 2 } //Sum of all the elements [1, 2, 3, 4, 5, 6].sum() == 21 ["a", "b", "c", "d", "e"].sum() == "abcde" [["a", "b"],["c", "d"]].sum() == 2, 1] //Index returned ["a", "b", "c", "d", "c"].indexOf("c") == 2 //Join the elements [1, 2, 3].join('-') == "1-2-3"Get an element at a specified location list.get(2) |
Maps
Some useful methods with examples are explained below. See here for all the methods applicable for a Map.
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