Wednesday, May 1, 2013

How to convert Array to List and List to Array

Use case : How to convert java.util.List to Array & Array to java.util.List in Java

Implementation : 

List to Array conversion

List<String> nameList = new ArrayList<String>();
nameList.add("Steve");
nameList.add("Tom");

// Convert List to Array with Generics.
String[] nameArray = nameList.toArray(new String[nameList.size()]);

Array to List conversion

// Convert Arrays to List with Generics
List<String> lastNameList = new ArrayList<String>(Arrays.asList(nameArr));

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