1 / 5   Which of these interface must contain a unique element?

Set List Array Collection

2 / 5   Which keyword is used to explicitly throw an exception?

throw catch throwing try

3 / 5   DGC stands for?

Distributed Garbage Collection Digital Garbage Collection Distributed Garbage Connection Digital Garbage Connection

4 / 5   Which of these interface must contain a unique element?

Set List Array Collection

5 / 5   Which of the following is not a return type?

public Button boolean void