Test Index

Collections and Generics

Question : 52

Total: 53

Given that

String implements java.lang.CharSequence, and:
import java.util.*;
public class LongWordFinder {
  public static void main(String[] args) {
   String[] array = { "123", "12345678", "1", "12", "1234567890"};
   List < String > list = Arrays.asList(array);
   Collection < String > resultList = getLongWords(list);
  }
  /* INSERT DECLARATION HERE*/ 
{
   Collection < E > longWords = new ArrayList < E > ();
   for (E word : coll)
   if (word.length() > 6) longWords.add(word);
   return longWords;
  } }

Which declarations could be inserted at // INSERT DECLARATION HERE so that the program will compile and run? (Choose all that apply.)

public static < E extends CharSequence > Collection < ? extends CharSequence > getLongWords(Collection < E > coll)
public static < E extends CharSequence > List < E > getLongWords(Collection < E > coll)
public static Collection < E extends CharSequence > getLongWords(Collection < E > coll)
public static List < CharSequence >getLongWords(Collection < CharSequence > coll)
public static List < ? extends CharSequence >getLongWords(Collection < ? extends CharSequence > coll)
static public < E extends CharSequence > Collection < E >getLongWords(Collection < E > coll)
static public < E super CharSequence > Collection < E >getLongWords(Collection < E > coll)

Validate

Go to Question:

Prev Question

Next Question

Collections and Generics

More Free Exams: