Hi, In this article will see how to integrate razorpay integration with simple steps. SignUp razorpay — no need to provide kyc for testing(just signup with basic details) In razonpay dashboard — settings where you can generate api key and save it in to your local machine. Go to Android…

Hello All, In this article we will see what is the fragment and how to add to the activity. Fragment is just like an activity, but the difference is we can add the fragment in to the activity, it means we can divide the activity in to multiple fragments. For…

Hi, In this article we will see the benefits of data class and will see the difference between normal class data class with examples. Suppose If we create a class name as Student which is using to store student id and his name like below. class Student(val id:Int, val name:String) …

Hello Everyone, In this article we will see about camera permission. While scanning qr code for that we are asking camera permission. User will able to see one dialog where he can allow or deny. If he denies the permission, then how can we ask the user again. Let’s see …

In this article I am going to share some knowledge, if you have a better idea than this please comment below. The question is we are going to check the student is passed or failed. Suppose a student is having 4 subjects for that we are taking one Subject class.The…

We know that, class is a model/blueprint to create the objects in other hand we can also say class is a user defined datatype. let’s create the class Student

Null means no value, if you are trying to access the variable which does not have any value then you will get null pointer exception. But you can find this exception in runtime not at compile time. Is there any way to fix this null pointer exception at compile time…

Encapsulation: it means wrapped up, hiding,security or adding some extra layer. Why do use encapsulation in programming.The answer is simple just to provide the security to the data. For example, we will take Student class class Student{ public int id; public String name; public String address; } class is just…

When you are getting the data from API, the data is in the form of JSON. For example we will take student information as a JSON file, which contains student id, name and address To use in our flutter project we need to create a student class which is having…