i need help with filling in/correct each line that is indicated by a comment wit

Question

i need help with filling in/correct each line that is indicated by a comment with a number

import java.util.Arrays;

import java.util.LinkedList;

import java.util.List;

import java.util.ListIterator;

public class ListTest

{

public static void main(String[] args)

{

String[] costumes =

{"Dracula", "Spiderman", "Werewolf", "Wonderwoman", "Nurse", "R2D2", "Pilot"};

// #1 Create a list1 using the asList method

String[] scaryCostumes =

{"Dracula", "Zombie", "Werewolf", "Axe Murderer", "Blob"};

// #2 Create a list using the asList method

// #3 concatenate lists into list1 using addAll

// #4 release resources of list2

printList(list1); // print list1 elements

printList(list1); // print list1 elements

System.out.printf("%nDeleting elements 4 to 6...");

removeItems(list1, 4, 7); // remove items 4-6 from list

printList(list1); // print list1 elements

printReversedList(list1); // print list in reverse order

}

// output List contents

private static void printList(List<String> list)

{

System.out.printf("%nlist:%n");

for (String costume : list)

System.out.printf("%s ", costume);

System.out.println();

}

// obtain sublist and use clear method to delete sublist items

private static void removeItems(List<String> list,

int start, int end)

{

//#5 use sublist and clear to remove items

} // end method removeItems

// print reversed list

private static void printReversedList(List<String> list)

{

ListIterator<String> iterator = list.listIterator(list.size());

System.out.printf("%nReversed List:%n");

//#6 print list in reverse order

}

} // end class ListTest

Explanation / Answer

Here is the code for you:

import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;

public class ListTest
{
public static void main(String[] args)
{
String[] costumes =
{"Dracula", "Spiderman", "Werewolf", "Wonderwoman", "Nurse", "R2D2", "Pilot"};
  
// #1 Create a list1 using the asList method
       List list1 = Arrays.asList(costumes);
      

String[] scaryCostumes =
{"Dracula", "Zombie", "Werewolf", "Axe Murderer", "Blob"};
// #2 Create a list using the asList method
       List list2 = Arrays.asList(scaryCostumes);

// #3 concatenate lists into list1 using addAll
       list1.addAll(list2);
// #4 release resources of list2
       list2.clear();

printList(list1); // print list1 elements


printList(list1); // print list1 elements

System.out.printf("%nDeleting elements 4 to 6...");
removeItems(list1, 4, 7); // remove items 4-6 from list
printList(list1); // print list1 elements
printReversedList(list1); // print list in reverse order
}

// output List contents
private static void printList(List<String> list)
{
System.out.printf("%nlist:%n");

for (String costume : list)
System.out.printf("%s ", costume);

System.out.println();
}


// obtain sublist and use clear method to delete sublist items
private static void removeItems(List<String> list,
int start, int end)
{
//#5 use sublist and clear to remove items
       for(int i = start; i < end; i++)
       list.remove(i);
} // end method removeItems

// print reversed list
private static void printReversedList(List<String> list)
{
ListIterator<String> iterator = list.listIterator(list.size());
System.out.printf("%nReversed List:%n");
//#6 print list in reverse order
while(iterator.hasPrevious())
{
System.out.print(iterator.previous() + " ");
}
System.out.println();

}
} // end class ListTest

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.