Programming/Java
remove null reference in Java List
halatha
2011. 10. 7. 03:23
http://stackoverflow.com/questions/1239579/helper-in-order-to-remove-null-reference-in-java-list
import java.util.*;
public class ListTest
{
public static void main(String[] args)
{
final List<Integer> iList = new ArrayList<Integer>();
for ( int i = 0; i < 10; ++i ) {
if ( i % 2 == 0 ) iList.add(i);
else iList.add(null);
}
iList.remove(0);
System.out.println(iList + "\tsize " + iList.size());
iList.removeAll(Collections.singletonList(null));
System.out.println(iList + "\tsize " + iList.size());
}
}