Below is a java code for Que implementation. I need help with adding a new function into the code. I would like to add a range function. So the output should have 7 options, after 6. Size should be 7. Range.

/* * Java Program to Implement Queue */ import java.util.*; /* Class arrayQueue */ class arrayQueue { protected int Queue[] ; protected int front, rear, size, len; /* Constructor */ public arrayQueue(int n) { size = n; len = 0; Queue = new int[size]; front = -1; rear = -1; } /* Function to check if queue is empty */ public boolean isEmpty() { return front == -1; } /* Function to check if queue is full */ public boolean isFull() { return front==0 && rear == size -1 ; } /* Function to get the size of the queue */ public int getSize() { return len ; } /* Function to check the front element of the queue */ public int peek() { if (isEmpty()) throw new NoSuchElementException("Underflow Exception"); return Queue[front]; } /* Function to insert an element to the queue */ public void insert(int i) { if (rear == -1) { front = 0; rear = 0; Queue[rear] = i; } else if (rear + 1 >= size) throw new IndexOutOfBoundsException("Overflow Exception"); else if ( rear + 1 < size) Queue[++rear] = i; len++ ; } /* Function to remove front element from the queue */ public int remove() { if (isEmpty()) throw new NoSuchElementException("Underflow Exception"); else { len-- ; int ele = Queue[front]; if ( front == rear) { front = -1; rear = -1; } else front++; return ele; } } /* Function to display the status of the queue */ public void display() { System.out.print(" Queue = "); if (len == 0) { System.out.print("Empty "); return ; } for (int i = front; i <= rear; i++) System.out.print(Queue[i]+" "); System.out.println(); } } /* Class QueueImplement */ public class QueueImplement { public static void main(String[] args) { Scanner scan = new Scanner(System.in); System.out.println("Array Queue Test "); System.out.println("Enter Size of Integer Queue "); int n = scan.nextInt(); /* creating object of class arrayQueue */ arrayQueue q = new arrayQueue(n); /* Perform Queue Operations */ char ch; do{ System.out.println(" Queue Operations"); System.out.println("1. insert"); System.out.println("2. remove"); System.out.println("3. peek"); System.out.println("4. check empty"); System.out.println("5. check full"); System.out.println("6. size"); int choice = scan.nextInt(); switch (choice) { case 1 : System.out.println("Enter integer element to insert"); try { q.insert( scan.nextInt() ); } catch(Exception e) { System.out.println("Error : " +e.getMessage()); } break; case 2 : try { System.out.println("Removed Element = "+q.remove()); } catch(Exception e) { System.out.println("Error : " +e.getMessage()); } break; case 3 : try { System.out.println("Peek Element = "+q.peek()); } catch(Exception e) { System.out.println("Error : "+e.getMessage()); } break; case 4 : System.out.println("Empty status = "+q.isEmpty()); break; case 5 : System.out.println("Full status = "+q.isFull()); break; case 6 : System.out.println("Size = "+ q.getSize()); break; default : System.out.println("Wrong Entry "); break; } /* display Queue */ q.display(); System.out.println(" Do you want to continue (Type y or n) "); ch = scan.next().charAt(0); } while (ch == 'Y'|| ch == 'y'); } }

Please add the range function and make sure the code runs. Thank you.