java-org.hwo/src/org/hwo/StringHelper.java

package org.hwo;

import java.util.Arrays;
import java.util.Collection;
import java.util.Iterator;

public class StringHelper {

	public static String join(String[] c,String del)
	{
		return join( Arrays.asList(c),del);
	}

	public static String join(Collection<?> c,String del)
	{
		StringBuilder sb = new StringBuilder();
		Iterator<?> iter = c.iterator();
		while (iter.hasNext())
		{
			sb.append(iter.next());
			if (!iter.hasNext())
				break;
			sb.append(del);
		}
		return sb.toString();
	}
	
	
}