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How to change a collection to an array using Java
Problem Description
How to change a collection to an array?
Solution
Following example shows how to convert a collection to an array by using list.add() and list.toArray() method of Java Util class.
import java.util.*; public class CollectionToArray{ public static void main(String[] args){ List<String> list = new ArrayList<String>(); list.add("This "); list.add("is "); list.add("a "); list.add("good "); list.add("program."); String[] s1 = list.toArray(new String[0]); for(int i = 0; i< s1.length; ++i) { String contents = s1[i]; System.out.print(contents); } } }
Result
The above code sample will produce the following result.
This is a good program.
java_collections.htm
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