Summary - cs3391 (java)

JAVA PROGRAMMING
Introduction to Java Programming
1.Inheritance and Polymorphism

Discover the concept of inheritance and polymorphism in Java.

2.Java Syntax and Basics

Learn the fundamentals of Java syntax and programming structure.

3.Java Data Types and Variables

Understand the different data types and variables used in Java.

4.Constructors and Methods

Familiarize yourself with constructors and methods in Java.

5.Interfaces and Abstract Classes

Explore interfaces and abstract classes for Java programming.

6.Primitive Data Types and Autoboxing

Learn about primitive data types and autoboxing in Java.

7.Java Control Structures and Loops

Understand conditional statements and loops in Java programming.

8.Understanding Multithreading in Java

Learn the basics of managing multi-threaded applications in Java.

9.Collection Framework and Interfaces

, Understand and learn how to use collection interfaces used in Java.

10.Java Classes and Objects

Study both Java classes and objects, and their interactions.

11.Java Arrays and Matrices

Understand the concept of arrays and matrices in Java.

12.Method Overloading and Overriding

Study how to overload and override methods in Java.

13.Access Modifiers and Package Scope

Learn about various access modifiers and package scope in Java.

14.Exception Handling and Error Handling

Understand exception handling and error handling in Java.

15.Introduction to Exception Handling

Get introduced to exception handling and explore try, catch, finally blocks.

16.Working with Strings and StringBuilder

Learn how to use Strings, StringBuilder, and strings manipulation in Java.

17.Date and Time Classes in Java

Understand different date and time classes used in Java, such as Java 8 Date-
Time API.

18.Inner Classes and Anonymous Classes

Study inner classes and anonymous classes in Java for enhanced object-

,oriented programming.

19.Lambda Expressions and Functional Interfaces

Learn about lambda expressions and functional interfaces for Java 8 and
later.


JAVA SYNTAX AND BASICS
Introduction
Java is a popular, versatile programming language that is used for building a variety
of applications, from mobile apps to enterprise software. In this chapter, we'l
cover the basics of Java syntax and some fundamental programming concepts.

Variables
In Java, a variable is a named storage location used to store data. A variable has a
type, which determines the kind of data it can store, and a name, which is used to
refer to the variable. Here's an example of how to declare and initialize a variable
in Java:

int number = 10;

In this example, we declare a variable named number with a type of int (integer
and initialize it to the value 10. Here are some best practices for working with
variables in Java:

• Use descriptive variable names that accurately reflect the purpose of the
variable.
• Declare variables at the point where they are first used.
• Initialize variables as soon as they are declared, if possible.

, Data Types
Java has several built-in data types, including:

int: for storing integer values (whole numbers) in the range -2147483648 to
2147483647.

float: for storing floating-point numbers with single-precision (32-bit) accuracy.

double: for storing floating-point numbers with double-precision (64-bit)
accuracy.

char: for storing a single character, enclosed in single quotes.

boolean: for storing a value that is either true or false.

Here are some examples of declaring variables with different data types:

int age = 25;

float price = 9.99f;

double temperature = 37.5;

char letter = 'A';

boolean isStudent = true;

Operators
Java provides a variety of operators for performing arithmetic, logical, and
relational operations. Here are some examples:

Arithmetic operators: +, -, *, /, %

Logical operators: &&, ||, !

Relational operators: <, <=, >, >=, ==, !=