Java 8 Interview Q&A #java8 #interview #javatechie #shorts #youtube

[AvinashKumar-mhsi]

Please create many such sorts.
U r already a hit, this effort will multifold many things

[amandokania]

I2 will not be functional interface because after inheritance I2 have 2 abstract method (M1, M2)

[praveensiddavatam]

I1 is a functional interface it have only one abstract method but I2 is not functional interface it have 2 abstract methods m1() and m2().

[gameofnoobgon]

For sure, I2 is not a functional interface as it extends another interface which has an abstract method. But I1 work as Function interface, And Its recommended to add @FunctionalInterface annotation as it leads to ambiguity while compilation may results runtime error in future.

[afrozkhan.]

If the I2 annotated as FunctionalInterface then It will through compile error .
It is possible but i2 no longer be a functionalInterface

[arvinsuryavanshi]

We can't annotate l2 as @functionInterface, cause compiled time error

[ruksads]

Yes it will behave as functional interface even after extending.

[crimsonx_]

yes indeed it is tricky.. this question was asked when i was attending an interview session for an internship 3 yrs back...

[dipalijibhakate]

Interface I2 is not a functional interface itself contains one abstract method and again its extends fronm i1 interface which is also hving its own abstract indirectly i2 interface is having 2 abstract method and thus we cant call it as functional interface

[Aniruddhdwivedi]

This code will be compiled but I2 interface would be a simple interface instead of functional interface

[paulsofts]

I2 will no longer be a functional interface, as when it extends the interface I1, it will have one more abstract method, m1(), along with m2(), which breaks the rule for functional interfaces. i.e., a functional interface must have one and only one abstract method.

[User_xyz_]

Here I1 is a functional interface as it contains only one abstract method where as I2 is not because it extends the I1 and have two abstract methods.

Note : Functional interface is an interface which contains only one abstract method. It can have any number of static and default methods.

[MinatiSona]

No, bcoz a functional interface should contain only one abstract method directly or indirectly

[grrlgd]

I1 is functional but I2 is not. London ❤

[maayyu]

No since there is more than one abstract method

[bhuvaneshvarsrivastava]

No, because now it will have 2 abstract method to implement

[sabyasachirajkumar]

I2 is not gonna be a functional interface becoz it has 2 abstract method.

[AsadAhmad-hdgn]

No it can't be functional coz of extended property of parents interface.

[rajeshroyal]

We will get the compilation error ..as the functional interface will not extends the another functional interface ..but it can extends if the interface have default or static methods.

[sharesolutions]

I2 can implement I1. Extends keywords is used for class.