Introduction
In this tutorial we will look at the use of Function a functional interface introduced in java 8.
Refer The video Tutorial for detail
Use Case
Function is a functional interface which accepts one argument and returns another.The sample code is shown below.
//this interface accepts one argument and return one result.
Function<Integer,String> function=new Function<Integer,String>() {
@Override
public String apply(Integer t) {
return "The data is: "+t;
}
}
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The above case Function will receive one argument and return one result. The function is receiving Integer t and returning a String.
Conclusion
In this tutorial we saw the use case of functional interface - Function. which is introduced in java 8 as request response perimeter.
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