hi thnake for reply i did declare the phone number as number dosen't work if insrting the 01992 but work with +1992, my question how to insert phon number started with 0.

Code:
public class Test
{
    public static void main(String args[])
	{
         CustomerDetails customer = new CustomerDetails (2,"omar","sun","n3 6hr",+1992787878);
        System.out.println("Custer Details is \t" + customer.getCustomerId() +" "+ "House Number is"+ " "+customer.getHouseNumber()+ " "+ customer.getStreetName()+" "+customer.getTelephoneNo());

	}
}