/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{
		List<String> list = Arrays.asList(("zero\n"
                + "test0\n"
                + "one\n"
                + "test1\n"
                + "two\n"
                + "test2").split("\n"));
        LinkedHashMap<String, String> linked = new LinkedHashMap<>();
        for (int i = 0; i < list.size(); i += 2) {
            linked.put(list.get(i), list.get(i + 1));
        }
 
        linked.forEach((k, v) -> System.out.println(k + ":" + v));
	}
}

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