public class AddQueue {

static class Queue{

int maxsize;

int queueArray[];

int front;

int rear;

Queue(int size){

maxsize= size;

queueArray= new int[size];

front= -1;

rear= -1;

}

void add(int val){

if(rear==maxsize-1){

System.out.println("The queue is full");

return;

}

if(rear==-1){

queueArray[++rear]=val;

front= 0;

queueArray[front]=val;

System.out.println(val + " added in queue");

}

else{

queueArray[++rear]= val;

System.out.println(val + " added in queue");

}

}

void display(){

if(rear==-1){

System.out.print("Empty queue");

return;

}

for(int i= front; i<=rear; i++){

System.out.print(queueArray[i] + " ");

}

System.out.println();

}

}

public static void main(String[] args) {

Queue q= new Queue(5);

q.add(3);

q.add(6);

q.add(2);

q.add(7);

q.add(4);

q.display();

}

}