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How Method returns instance of Interface in Java?
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In this video we will see
- How a method returns an instance of an Interface
- An example of JDBC
- Example in java explaining how method return object of interface
An interface is an abstract type that is used to specify a behaviour that classes must implement.
Interfaces are declared using the interface keyword, and may only contain method signature and variable declarations that are declared to be both static and final.
All methods of an Interface do not contain implementation (method bodies) as of all versions below Java 8.
Starting with Java 8, default and static methods may have implementation in the interface definition.
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.
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- How a method returns an instance of an Interface
- An example of JDBC
- Example in java explaining how method return object of interface
An interface is an abstract type that is used to specify a behaviour that classes must implement.
Interfaces are declared using the interface keyword, and may only contain method signature and variable declarations that are declared to be both static and final.
All methods of an Interface do not contain implementation (method bodies) as of all versions below Java 8.
Starting with Java 8, default and static methods may have implementation in the interface definition.
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.
Editing Monitors :
Follow on Facebook:
Subscribe to our other channel:
Telusko Hindi :
Donation:
PayPal Id : navinreddy20
Patreon : navinreddy20
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