Notes
Arrays:
String [] myArray= new List<String>();
Lists:
List<string> myList = new List<string>();
Sets:
Set<string> mySet = new Set<string>();
Maps:
Map<string, string> myMap = new Map<string, string>();
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Lists |
Sets |
Maps |
add() |
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put() |
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remove() |
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removeAll() |
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size() |
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get() |
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getSObjectType() |
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clear() |
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clone() |
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addAll() |
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contains() |
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containsKey() |
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containsAll() |
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deepClone() |
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equals() |
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indexOf() |
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isEmpty() |
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sort() |
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set() |
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toString() |
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hasCode() |
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Convert a List to a Set:
List<String> a = new List<String>{'A','B','C'};
Set<String> b = new Set<String>(a);
System.debug('List: '+a);
System.debug('Set: ' +b);
Convert a Set to a List:
Set<String> a = new Set<String>{'A','B','C','A','B','C'};
List<String> b = new List<String>(a);
System.debug('Set: '+a);
System.debug('List: ' +b);
Note: Duplicate elements of the set will not be available in the List.
