Intro to Java

Question 1

What is a platform?

Answer 1

It’s the combination of hardware and software that makes up a computer.

Question 2

Describe what a program is.

Answer 2

Programs represent sequences of instructions for performing a specific task.

Question 3

What are some of the key requirements of a programming language?

Answer 3

-Possibility of rapid software development.
-Good performance of developed programs.
-The possibility of creating complex software
systems.

Question 4

What is Java?

Answer 4

Java is a general-purpose, modern programming language initially developed by Sun Microsystems, and currently owned by Oracle Corporation. The key feature of the language is platform independence; this means that the same Java program can be run on multiple platforms without any changes! This principle is also known as “write once, run anywhere” (WORA).

Question 5

What is Java’s most important feature?

Answer 5

Platform independence.

Question 6

What are other important features?

Answer 6

-Simple and clear syntax
-Java has a garbage collector that automatically cleans
memory from unused objects during runtime.
-Java supports multiple programming paradigms.
Java is primarily an imperative language based on the
object-oriented concept; almost every part of a
program is an object. Therefore, a program itself can
be considered a set of interacting objects.