remove null reference in Java List 본문

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());
	}
}


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