[PDF] Understanding class definitions - TUM

What is first class object?

In this case, "object" does not refer to object-oriented programming but to the more general meaning of "thing". First class objects are those "things" in a programming language that can be reified, passed around and usually manipulated.

Are there any objective questions with answers in Java?

Java objective questions with answers. Here five MCQ Questions with Answers are added on Java objects & classes and each question contain four options as possible answer but only one option is the correct answer. Select one and check your answer with the given correct answer.

What are the different types of Java objects?

In addition to new types of objects that are created by programmers, Java has many different types of built-in objects. Two types that we will en- counter in this chapter are the String and PrintStream objects.

What is the difference between the first and second example?

The only difference in the above two examples is that the first one makes use of concatenation to form the string. The second example simply creates a string using one set of " and ". Could either of the previous two versions be used to show the price of tickets in different ticket machines? Explain your answer.