Headstrong Placement Paper

41. What is the Collections API? The Collections API is a set of classes and interfaces that support operations on collections of objects. One example of class in Collections API …

31. What are the three types of priority? MAX_PRIORITY which is 10, MIN_PRIORITY which is 1, NORM_PRIORITY which is 5.

21. What is the difference between an array and a vector? Number of elements in an array are fixed at the construction time, whereas the number of elements in vector …

11. What are the access modifiers in Java? There are 3 access modifiers. Public, protected and private, and the default one if no identifier is specified is called friendly, but …

1. What is a class? A class is a blueprint, or prototype, that defines the variables and the methods common to all objects of a certain kind.