View difference between Paste ID: AyeuHiYi and 7mBU4W9E

 import java.io.*;
 import java.util.Scanner;
 
 
 
 class Queue3 {
 	private int maxSize;
 	private char[] queueArr;
 	private int front;
 	private int rear;
 	private int nItems;
 	public Queue3(int s) {
 		maxSize=s;
 		queueArr=new char[maxSize];
 		front=0; rear=-1; nItems=0;
 	}
 	public void insert(char letter) {
 		if(rear==maxSize-1) rear=-1;
 		queueArr[++rear]=letter; nItems++;
 	}
 	public char remove() {
 		char temp=queueArr[front++];
 		if(front==maxSize) front=0;
 		nItems--;
 		return temp;
 	}
 	public char peekFront() {
 		return queueArr[front];
 	}
 	public boolean isEmpty() {
 		return (nItems==0);
 	}
 	public boolean isFull() {
 		return (nItems==maxSize);
 	}
 	public int size() {
 		return nItems;
 	}
 }
 
 class QueueApp3 {
 	public static void main(String [] args) throws IOException {
 		Scanner keyboard = new Scanner (System.in);
 		int a, b, d;
 		char c;
-		String tmp;
+
 		System.out.print("Enter the size of the array:");
 		a=keyboard.nextInt();
 		Queue3 theQueue=new Queue3(a);
 		System.out.print("Enter the number of items to be inserted:");
 		b=keyboard.nextInt();
 
 		for(int i=1;i<=b;i++) {
 			System.out.print("Enter the item:");
 			c=keyboard.next().charAt(0);
-			tmp=keyboard.next();
+
-			c=tmp.charAt(0);
+
 
 		System.out.print("Enter the number of items to be removed:");
 		d=keyboard.nextInt();
 		for(int k=1;k<=d;k++) {
 			theQueue.remove();
 		}
 
 		System.out.print("Enter the number of items to be inserted:");
 		b=keyboard.nextInt();
 		for(int i=1;i<=b;i++) {
 			System.out.print("Enter the item:");
 			c=keyboard.next().charAt(0);
 			theQueue.insert(c);
-			tmp=keyboard.next();
+
-			c=tmp.charAt(0);
+
 		while(!theQueue.isEmpty()) {
 			char n=theQueue.remove();
 			System.out.print(n);
 			System.out.print(" ");
 		}
 		System.out.println(" ");
 	}
 }