Question

Observe the below interface. interface B{ public float display(); } Which of the following are valid lambda expression for the above interface? Select one or more:
B b1=( )->{ return a; }; B b1=( )->{ float a=10.5f; return a; }; B b1=( ) -> float a=10.5f; return a; int a=15; B b1=( )->{ return a; } ;​

Answer 1

Answer:

Lambda expression is a new and important feature of Java which was included in Java SE 8. It provides a clear and concise way to represent one method interface using an expression. It is very useful in collection library. It helps to iterate, filter and extract data from collection.