Collection Interface toArray() Method

Using this method we can store all elements from the invoking collection in an array.

Collection Interface toArray() Method:

Using this method we can store all elements from the invoking collection in an array. It return an array that contain copies of the collection elements.

Syntax :

Object[ ] toArray( );

Example :

import java.util.ArrayList;
import java.util.Collection;

public class collectioninterfacetoarraymethod {
public static void main(String args[]) {

Collection<String> arraylist = new ArrayList<String>();

arraylist.add("Raj");
arraylist.add("Singh");

System.out.println("Contents of arraylist: " + arraylist);

String arr[] = new String[arraylist.size()]; 
arr = arraylist.toArray(arr);
System.out.println("Contents of array: ");
for(int i=0; i<(arraylist.size()); i++){
System.out.println(arr[i]);
}
}
}

Output :

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