Java Programing laungage

Core Java Tutorial

Introduction of Core Java

How To Install JDk and Set of Path

Syntax of java Program

Difference between Java and C/C++

Advantage and Disadvantage of Java

What is Java

Why Java is not Pure Object Oriented Language

Java has Following Features/Characteristics

Limitation of Java Language and Java Internet

Common Misconception about Java

Simple Program of Java

Integrated Development Environment in java

Compile and Run Java Program

Applet and Comments in Java

Tokens in Java

Keywords in Java

Identifier and Variables in Java

Literals/Constants

Data Type in Java

Assignments and Initialization in Java

Operators in Java

Rule of Precedence in Java

Operator on Integer and Separators in Java Programming

Java Control Flow of Statements

If and If-else Selection Statement

Nested If-else and If-else-If Selection Statement

switch case and conditional operator Selection Statement

for and while Loop

do..while and for each Loop

break and labeled break statement

continue and labeled continue statement

return Statement and exit() Method

Escape Sequence for Special Characters and Unicode Code

Constants and Block or Scope

Statement in Java

Conversions between Numeric Types in Java

Import Statement in Java

User Input in Java using Scanner Class

User Input in Java using Console Class

Array in Java

One Dimensional Array

Two Dimensional Array

Two Dimensional Array Program

Command Line Argument in Java

String args Types in Java

Uneven/Jagged array in java

Math Class Function and Constant

Math Class all Function used in a program

Enumerated Types in Java

Object Oriented Programming v/s Procedural Programming

Object Oriented Programming Concepts in Java

Introduction to Class,Object and Method in Java

Class Declaration in Java

Class & Objects in java

Encapsulation in Java

Modifiers/Visibility for a Class or Interrface or member of a Class

Polymorphism in Java

Runtime polymorphism (dynamic binding or method overriding)

Assignments and Initialization in Java
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Initialization is the way to initialize the variable .It can be done at the time of declaration. Assignments is the way to assign the value to the variable it can be done anywhere only once with the final identifier. throwing away the old value of a variable and replacing it with a new one.

To understand assignment and initialization it is must to understand declaration. Declaration is nothing just a way to declare value to a variable. java variables assign or given values using one of the assignment. we cannot assign a value to a constant but we can initialize it .this is the big difference between the initialization and assignment can be done many times while initialization occur only once.

 

forexample:

int a; //declaration
a=5; //initialization, assignment operators are used to assign value to the variable

float a,b, sum;
a=5;
b=4;
sum=a+b;//a+b is assigning to sum.

int a; //declaration
a=5; //initialization

float a,b,sum
a=5;
b=4;
sum=a+b; // a+b is assign to the variable sum. 
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