#74 Lambda Expression with return

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In this lecture we are discussing about lambda expression:

#1
-- if we have a functional interface
interface A{
int add(int i, int j);
}
in this case, we return int type from add a method for that we can write a lambda expression
in different ways.
-- if we have a single statement you do not need of curly braces
A obj1 =(i,j)- return i+j;

-- if we want to return something in a single statement, no need to mention the return keyword
A obj2 =(i,j)-i+j;

#2
Example:
class Main{
public static void main(String[] args){
// Anonymous class with lambda expression
//if you have single statement and want to return something then you need not to write return keyword and curly braces
A obj= (i,j)- i+j;
//lambada expression works with functional interface
}
}

interface A{
public int add(int i,int j);
}

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[sammclaren]

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[tarrincurtis]

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[byrimahesh]

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[nikhiljose]

What if i have a default method inside functional interface and i need to call that default method. How will we do that if we are using lambda expression?

[Aviation]

[Be an efficient programmer] i like it

[shaad]

I used lamda with two anonymous inner class

By making two variables in interface,
Then making 2 obj of reference A in main method

A obj1 =
A obj2 =

It worked without functional interface?

[Akshay-ojoc]

In java 20 a new feature will be introduced, users can write .class files directly to make things simpler and save space..😂 i think these kind of syntaxes will only create headache and affect code readability..

[dollytiwari]

Please add more videos lambda expression Steam API with collection