This document provides an overview of advanced Java programming concepts covered in the unit, including object-oriented programming, data types, variables, arrays, operators, inheritance, and control statements. It defines key concepts like classes, objects, encapsulation, polymorphism, and inheritance. For data types, it covers primitive types like int, float, boolean and char, as well as arrays. Operators covered include unary, arithmetic, relational, logical, and assignment operators. The document also discusses variables, arrays, and control statements like selection, iteration, and jump statements.

2. ADVANCED JAVA PROGRAMMING
UNIT-1
OVERVIEW OF JAVA

3. CONTENT
 Introduction
 Objects Oriented Programming
 Lexical Issue
 Data Types
 Variable and Array
 Operators
 Inheritance
 Control statement

4. Introduction :
 Advanced Java is everything that goes beyond core java
 Importantly,APIs define in Java enterprise ededition,include:
Servlet programming,
web services,
The Presistence API,
 It’s a Web and Enterprise application development platform which basically Client
and Server architecture.

5. Object Oriented Programming :
 OOP is an approach to program organization and development, which attempts
to eliminate some of the drawbacks of conventional programming methods by
incorporating the best of several new concepts
 OOP allow us decompose a problem into number of entities called Object and
then build data and methods around these entities
 The data of an object can be accessed only by the methods associated with the
object

6. Classes:
 Class is blue print or an idea of object
 From one class any number of Instance can be created
 It’s an encapsulation of attributes and methods
Class.
Obj1. Obj2 Obj3
Figure
Circle Rectangular Square

7. Syntax of Class :
Class <Class Name >
{
Attribute /variables;
Constructor ();
Methods();
}

8. Instance :
 Instance is an object of a class which is an entity with it’s own attribute values and
methods
 Creating instance :
ClassName refVariable;
refVariable =new Constructor ();
Or
ClaasName refVariable =new Constructor();

9. Java Class Hierarchy :
 In Java, class “object ” is the base class to all other classes
 If we do not explicitly say extends in a new class definition, it implicitly extends
object
 The tree of class that extend from object and all of It’s subclass hierarchy
 All classes eventually lead back up to obobjectsThis will enable consistent access
of different classes

10. Inheritance :
 Methods allowed to reuse a sequence of statements
 Inheritance allows to reuse Classes by deriving a new class from an existing one
 The existing class is called the parent class, or subclass, or base class
 The derived class is called the child class or subclass
 The child class inherits characteristic of the parent class

11.  Data abstraction organize data.
 Is a essential elements of oop.
 Is the use of hierarchical classification .
Encapsulation :
 Data manipulate and keep both safe from outside interface .
 Productive wrapper the code and data.
 Encapsulation as a class, it defines the member variable, instance variable .
Data Abstraction :

12. Polymorphism :
 It allow one interface to use for general class.
 It’s more than one form.
 Integer, Floating point, Character in three types of stack.

13. Lexical Issues :
 White Space
 Identifier
 Literals
 Comments
 Separator
 keywords

14. Whitespace:
 Whitespace is a Java may be,
 A space
 A newline
 A tab
Identifier :
 Used for naming variable names, methods names and class name
 Should not start with a number
 Upper, lower case alphabet
Example :
Audi count a7 this_is_ok

15. Literals:
 It is a constant created in java
88 76.5 ‘A’ “ I am a string ”
 88 is an integer
 76.5 is a float
 ‘A’ Is a character
 “I am a string “ is a sstring
Comments:
 Single line, multiple line
 Documentation comment
/**and end with a*/
 Produce an html file

16. Separators:
 Few character are used, most commonly used semicolon.
 () method definition
 {} define block of code,class method
 [] declare array types
 . Separate package name
 , separate consecutive identifier in a variable declaration

17. Keywords :
 It can’t use class, variable, methods
 50keyword to be used
Example:
abstract for goto do
this if Super long
throw public char static

18. Data type in java :
Datatype
Primitive data
Types
Non-primitive
Datatypes
Numeric Boolean Character Array Object
Int Float long

19. Data types:
Integer :
 Java define four integer type :
Byte
short
Int
Long
 All of these are signed, positive and negative value.
 Java doesn’t support unsigned positive only integer

20. Floating point
 There are two types in java
Double
Float
 Float f=56.8929929
 Double d=4.5877
Boolean Data type :
 A boolean data type Is declared With The boolean keyword and only take the value true or false
The character data type :
 The character data type is single 16bit Unicode character.
CharGrade=‘A'

21. Variable and Array :
Variable:
 A variable is a named field containing information that your program uses
 A variable as a name of the memory location where the variable value is stored
Declaring variable:
Type identifier [=value ][,identifier [=value ]…..]
Array:
 An array is group of like _typed variables that are referred to by a common name
 An array can be of any type
 Specific element in an array is accessed by its indax
 Can have more than one dimention

22. Declaration OF ARRAY
 The general form of Array
Type[]var_name
int a1[]= new int[3];

23. Operators:
 Unary Operator
 Arithmetic Operator
 Shift Operator
 Relational Operator
 Bitwise Operator
 Logical Operator
 Assignment Operator

24. Unary Operator :
 The Java Unary Operator require one operand.Unary operator are used to
perform various operation
 Incrementing /decrementing a value by one
 Nagative an expression
 Inverting the value of a boolean

25. Arithmetic Operator :
 Arithmetic Operator are used to perform mathematical operation like, addition,
subtraction, multiplication

26. Relational Operator :
 The equality and relational operator determines the relationship between two
operands
 It check if an is greater than, less than, equal to, not equal to and so on
 Depending on the relationship, it results to their true or false

27. Logical Operator :
 The logical operator ||(conditional OR)and&&(conditional AND) Operats on
boolean expression.

28. Control statement in java:
Control statement
Selection
Iteration
Jump

29. THANK YOU