each b for int i 5 i 0 i ali ali 1 c for int i 0 i 0 i2 a

each) b) for (int i- 5: i 0 i--) ali ali 1 c) for (int i - 0: i _ 0; i--2) { a[i] . a[i + 1); } main method in this class). A class Collection has an array of integers and a count (integer) as The variable name for the array of integers is numArray Note: You need to distinguish the array size (capacity) and \"count\" that keeps track of numbers added to this array so far contain any of the following methods, points will be deducted.) reached its capacity. If both are satisfied, the number is added to the array at the

Solution

//Collection.java
public class Collection {
   //declare instance variables
   private int arr[];
   private int size;
   private int index;
   //Constructor that takes array size
   public Collection(int arrSize) {
       size=arrSize;
       arr=new int[size];
       index=0;
   }

   //Method to add number to array
   public boolean addNumber(int number) {

       if(index<size)
       {
           arr[index]=number;
           index++;
           return true;
       }
       else
           return false;
   }
   //Method to remove element from the array
   public boolean remove(int element)
   {
       int pos=-1;
       boolean found=false;

       for (int i = 0; i < arr.length &&!found; i++)
       {
           if(arr[i]==element)
           {
               pos=i;
               found=true;
           }
       }

       if(found)
       {
           for (int i = pos; i < arr.length-1; i++)
           {
               arr[i]=arr[i+1];
           }
           index--;
       }

       return found;

   }
   //Method to rotate right by count
   public void rotate(int count)
   {

       for (int i = 0; i < count; i++)
       {
           int first=arr[0];

           for (int j = 0; j < index-1; j++)
           {
               arr[j]=arr[j+1];
           }

           arr[index-1]=first;  
       }
   }
   //method to return count of the elements in array
   public int getCount() {

       return index;
   }
   //Method that swap the first element with smallest
   public int[] swapSmallest() {

       int[] temp=new int[index];
       int smallest=arr[0];
       for (int i = 0; i < temp.length; i++)
       {
           temp[i]=arr[i];          
       }

       for (int i = 1; i < temp.length; i++)
       {
           if(temp[i]<smallest)
               smallest=temp[i];              
       }

       temp[0]=smallest;

       return temp;
   }  
   //overrides the toString method that returns
   //the string description of array
   @Override
   public String toString() {

       String list=\"\";

       for (int i = 0; i < index; i++)
       {
           list+=arr[i]+\",\";
       }

       return list;
   }

}

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//Assignment7.java
import java.util.Scanner;
public class Assignment7
{
   public static void main(String[] args)
   {
       int number, size;
       String choice;
       char command;

       Scanner keyboard = new Scanner(System.in);
       // ask a user for a array size
       System.out.println(\"Please enter a size for the array.\ \");
       size = Integer.parseInt(keyboard.nextLine());

       // instantiate a NumberCollection object
       Collection collection = new Collection(size);

       // print the menu
       printMenu();

       do
       {
           // ask a user to choose a command
           System.out.println(\"\ Please enter a command or type ?\");
           choice = keyboard.nextLine().toLowerCase();
           command = choice.charAt(0);

           switch (command)
           {
           case \'a\': // add a number
               System.out.println(\"\ Please enter an integer to add.\");
               number = Integer.parseInt(keyboard.nextLine());
               if(collection.addNumber(number))
                   System.out.println(\"\ \" + number + \" successfully added.\");
               else
                   System.out.println(\"\ \" + number + \" is already in the array. \" + number + \" was not added.\");
               break;
           case \'b\':
                   System.out.println(\"Please enter an integer to remove.\");  
                   int element=Integer.parseInt(keyboard.nextLine());
                   if(collection.remove(element))
                       System.out.println(element+\" successfully removed.\");
                   else
                       System.out.println(\"Not found\");

               break;
           case \'c\': //display
               System.out.println(collection.toString());
               break;
           case \'d\': //swap the first element with smallest
               int[] temp = collection.swapSmallest();
               for (int i=0; i< collection.getCount(); i++)
                   System.out.print(temp[i] + \" \" );
               System.out.println();
               break;

           case \'e\':
              
               System.out.println(\"Enter rotation count:\");
               //prompt for rotation value
               int rotation=Integer.parseInt(keyboard.nextLine());
               //Calling rotat method
               collection.rotate(rotation);
               System.out.println(\"The rotated array is:\"+collection.toString());
               break;
           case \'?\':
               printMenu();
               break;
           case \'q\':
               System.out.println(\"Thank you!\");
               //exit from the program
               System.exit(0);
               break;
           default:
               System.out.println(\"Invalid input!\");

           }

       } while (command != \'q\');

   } //end of the main method

   // this method prints out the menu to a user
   public static void printMenu()
   {
       System.out.print(\"\ Command Options\ \"
               + \"-----------------------------------\ \"
               + \"a: add an integer in the array\ \"
               + \"b: remove an integer from the array\ \"
               + \"c: display the array\ \"
               + \"d: swap with smallest\ \"
               + \"e: rotate\ \"
               + \"?: display the menu again\ \"
               + \"q: quit this program\ \ \");

   } // end of the printMenu method

} // end of the Assignment7 class

------------------------------------------------------------------------------------------------------------------------------------

Sample Output:

Please enter a size for the array.

3

Command Options
-----------------------------------
a: add an integer in the array
b: remove an integer from the array
c: display the array
d: swap with smallest
e: rotate
?: display the menu again
q: quit this program

Please enter a command or type ?
a

Please enter an integer to add.
12

12 successfully added.

Please enter a command or type ?
a

Please enter an integer to add.
13

13 successfully added.

Please enter a command or type ?
a

Please enter an integer to add.
14

14 successfully added.

Please enter a command or type ?
c
12,13,14,

Please enter a command or type ?
d
12 13 14

Please enter a command or type ?
e
Enter rotation count:
2
The rotated array is:14,12,13,

Please enter a command or type ?
b
Please enter an integer to remove.
12
12 successfully removed.

Please enter a command or type ?
c
14,13,

Please enter a command or type ?