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Java Fundamentals
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Which interface performs some action on an object of type T, while returning nothing
A functional interface is an interface that contains exactly ___ abstract method.
Which interface takes no arguments but must return an object of type T
Which interface checks if some condition is met, if it is met then true is returned?
Is that the correct lambda expression?(x,y) -> return x*y;
Which functional interface takes two arguments of type T, performs a binary operation, and returns a result of type T?
Is that the correct lambda expression?() -> {return x*y;}
What is java regex for below string S?
The following fragment of code is given:
Based on this fragment please answer what will be the result of running this fragment
What methods are methods of String class?