Question

MAKING JAVA PROGRAMING:

This assignment is very dry to let you focus on using the Containers this week since they are pretty weird. Just follow along. There's no "point" or theme. It's just going to use them.

Make a list of ints

Add 3 9 5 2 4 to the list in that order

Loop through the list and output the numbers to the screen

Remove the second item

Loop through and output them again

Make a map of strings to ints

Add five movie titles with the year they were released. One of the movies must be "Bright". It was pretty good.

Output the year Bright was released.

Get rid of all the data from both containers.

Answer 1

import java.util.ArrayList;

import java.util.HashMap;

public class Containers {

   public static void main(String[] args) {

       ArrayList<Integer> list = new ArrayList<Integer>();

       list.add(3);

       list.add(9);

       list.add(5);

       list.add(2);

       list.add(4);

       System.out.print("Original list: ");

       for (int i = 0; i < list.size(); ++i)

           System.out.print(list.get(i) + " ");

      

       System.out.println();

      

       list.remove(1);

      

       System.out.print("After removing list: ");

       for (int i = 0; i < list.size(); ++i)

           System.out.print(list.get(i) + " ");

      

       System.out.println();

      

      

       HashMap<String,Integer> map = new HashMap<String, Integer>();

       map.put("Bright", 1999);

       map.put("Titanic", 2001);

       map.put("Red", 1967);

       map.put("Steel", 2013);

       map.put("Transformers", 2005);

       System.out.println(map.get("Bright"));

      

       list.clear();

       map.clear();

   }

}

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See Output


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