What is Java in programming?
Java is a high-level, object-oriented programming language.
What is the basic unit of a Java program?
A class is the basic unit of a Java program.
What are the two main categories of Java data types?
Primitive data types and reference data types.
Which Java data types are examples of reference types?
Arrays, classes, and interfaces.
Java Program Structure
Class with main() method as entry point.
Java Data Types
Primitive and reference categories.
Primitive data types
Include int, double, char, boolean.
Variables versus Constants
Variables can change; constants cannot.
Type casting
Converting one data type to another.
Widening conversion
Implicit, higher-precision, no data loss.
Class keyword
Defines a class in Java.
Answer 11 questions on Java Programming Basics.
1. What is the basic unit in which Java code is grouped?
2. What is the role of the main() method in a Java program?
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