In this article, We try to understand the concept of Java Classes and Objects with an example. The key content of this article are- (i) What is class and Object (ii) Example of class and object (iii) Difference between Class and Object (i.a) Class In Java: A class is an entity that determines how an object will behave and what the object will contain. In other words, it is a blueprint or a set of instruction to build a specific type of object. It provides initial values for member variables and member functions or methods. (i.b) Object In Java: An object is nothing but a self-contained component that consists of methods and properties to make a data useful. It helps you to determines the behaviour of the class. i.e we say that " A class is a template for an object, and an object is an instance of a class ". That's why class is called as logical entity , where object is physical entity . So simply, a class does not allocate memory space when it is created, on other han
How to Insert Multiple rows in a single db transaction in Android Room Database? | Android | Room DB
To insert multiple rows into a Room database in Android, you can follow these steps: 1. Set up Room Database: First, make sure you have set up your Room database correctly in your Android project. Define your Entity class, create a Database class that extends RoomDatabase, and set up your DAO (Data Access Object) interface. 2. Create Entity Class: Define an Entity class that represents the data you want to insert into the database. For example: 1 2 3 4 5 6 7 8 9 @Entity (tableName = "my_table" ) public class MyEntity { @PrimaryKey (autoGenerate = true ) public int id; public String name; public int age; // Add other fields and getters/setters as needed } Create DAO: Create a DAO interface with a method to insert multiple rows. For example: 1 2 3 4 5 @Dao public interface MyEntityDao { @Insert void insertAll (List<MyEntity> entities); } Initialise Database and DAO: In your application code, create an insta