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What is an interface in Salesforce?
An interface is like an Apex class in which none of the methods have been implemented. It only contains the method signatures, but the body of each method is empty. To use an interface, another class must implement it by providing a body for all of the methods contained in the interface.
WHAT IS interface in Salesforce lightning?
Lightning Interfaces uses to allow a component to be used in different contexts, or to enable your Lightning component to receive extra context data. A Lightning component can use multiple interfaces. Interfaces that user in component have an effect only in Lightning Experience and the Salesforce app.
How many methods interfaces can have?
At present, a Java interface can have up to six different types. Interfaces cannot be instantiated, but rather are implemented. A class that implements an interface must implement all of the non-default methods described in the interface, or be an abstract class.
CAN interfaces have methods?
The interface body can contain abstract methods, default methods, and static methods. An abstract method within an interface is followed by a semicolon, but no braces (an abstract method does not contain an implementation).
How does the Salesforce interface work in Java?
Salesforce interface is java-like interface. You just create interface (kind of full-abstract class) and create methods for this class (they are abstract so they consist only name and kind of returning parameter).
How is an interface used in a class?
To use an interface, another class must implement it by providing a body for all of the methods contained in the interface. Interfaces are used mainly for providing the abstraction layer for your code. They separate the implementation from declaration of the method. Let’s take an example of our Chemical Company.
How is an interface like an apex class?
Apex – Interfaces. An interface is like an Apex class in which none of the methods have been implemented. It only contains the method signatures, but the body of each method is empty. To use an interface, another class must implement it by providing a body for all of the methods contained in the interface.
Which is an example of an interface in SFDC?
SFDC do have standard interfaces like Database.Batchable, Schedulable, etc. For example, if you implement the Database.Batchable Interface, then you must implement the three methods defined in the Interface – Start, Execute and Finish.