import java.util.Scanner;
public class CQueue {
public static void main(String args[]) {
Scanner s = new Scanner(System.in);
int choice, n;
Object value;
System.out.println("Enter a size");
n = s.nextInt();
List c = new List(n);
do {
System.out
.println("CQueue operations\n1.puts()\n2.remove()\n3.getfrontelement()\n4.getrearelement()\n5.empty()\n6.size()\n7.display()\nEnter ur choice");
choice = s.nextInt();
...
Output:
Enter a size
5
CQueue operations
1.puts()
2.remove()
3.getfrontelement()
4.getrearelement()
5.empty()
6.size()
7.display()
Enter ur choice
1
Enter a value
10
CQueue operations
1.puts()
2.remove()
3.getfrontelement()
4.getrearelement()
5.empty()
6.size()
7.display()
Enter ur choice
1
Enter a value
20
CQueue operations
1.puts()
2.remove()
3.getfrontelement()
4.getrearelement()
5.empty()
6.size()
7.display()
Enter ur choice
1
Enter a value
30
CQueue operations
1.puts()
2.remove()
3.getfrontelement()
4.getrearelement()
5.empty()
6.size()
7.display()
Enter ur choice
1
Enter a value
40
CQueue operations
1.puts()
2.remove()
3.getfrontelement()
4.getrearelement()
5.empty()
6.size()
7.display()
Enter ur choice
2
The deleted element is=10
CQueue operations
1.puts()
2.remove()
3.getfrontelement()
4.getrearelement()
5.empty()
6.size()
7.display()
Enter ur choice
8 
