Circular array queue

In the void main there is an error show in

queue.enqueue( data: 8 );

my programe code
package Secction_Queues;

public class Circular_Array_Queue {

private int[] arr;
private int cs;
private int ms;
private int front;
private int rear;

public static int DEFAULT_CAPACITY=10;
Circular_Array_Queue(){
	this(DEFAULT_CAPACITY);
}
Circular_Array_Queue(int capacity){
	this.arr=new int[capacity];
	this.cs=0;
	this.ms=capacity;
	this.front=0;
	this.rear=capacity-1;
	
}
public boolean isFull() {
	return this.cs==this.ms;
}
public boolean isEmpty() {
	return this.cs==0;
	
}
public void enqueue(int data) {
	if(!this.isFull()) {
		this.rear=(this.rear+1)%this.arr.length;
		this.arr[this.rear]=data;
		this.cs=this.cs+1;
		
	}
}
public void dequeue() {
	if(this.isEmpty()) {
		this.front=(this.front+1)%this.arr.length;
		this.cs=this.cs-1;
	}
}
public int getFront() {
	return this.arr[this.front];
}
public static void main(String[] args ) {
	// TODO Auto-generated method stub

	Circular_Array_Queue queue=new Circular_Array_Queue();
     for(int i=1; i<=6; i++) {
    	 queue.enqueue(i);
     }
     
     queue.dequeue();
     queue.dequeue();
     queue.enqueue( data:8);
     while(!queue.isEmpty()) {
    	 System.out.println(queue.getFront());
    	 queue.dequeue();
     }
}

}

change class name to Main and the references made to it too