java content

Java

• Introduction to Java
• Types of Applications
• what is Network ?
• Types of networks
• java Categorys
• What is J2SE ?
• What is J2EE ?
• What is J2ME ?
• Features of Java

fundamentals of java

• keywords in Java
• constant
• variable or identifier of operand
• datatype
• java syntax
• Naming Conventions

Operators

• Unary
• Binary
• Ternary

Unary Operators

• Unary minus
• increment
• preIncrement
• PostIncrement
• Decrement
• preDecrement
• PostDecrement

Binary Operators

• Arithmetic operators
• assignment operator
• Relational operator
• Logicaloperator
• bitwise operator

control statements in java

Conditional Statements

• if Condition
• if else Condition
• else if Condition
• nested if Condition
• switch Expression

looping Statements

• for loop
• nested for loop
• while loop
• di while

UnConditional Statements

• continue
• break

oops

oops principals

• Encapsulation
• Abstraction
• Inheritance
• Polymorphism

object

Encapsulation

• what is Encapsulation
• class Syntax
• variable
• local variable
• global variable
• formal variable
• class variable or static variable
• instance variable
• Method
• parameterized method
• no parameterized method
• object or instance creation
• method calling
• OOPS Syntax and explanation

Data Abstraction

• what is Constructor ?
• parameterized constructor
• no parameterized constructor
• Default constructor
• Difference between constructor and method
• constructor calling
• jvm architecture
• class loader subsystem
• Run time memory area
• execution engine
• interpreter in java
• JIT compiler
• what is static ?
• static variable
• static method
• static method
• differences between static variable and nonstatic variable
• differences between static method and nonstatic method
• differences between static and final
• this keyword
• this.
• this()

Inheritance

• types Inheritance
• single Inheritance
• multilevel Inheritance
• multiple Inheritance
• hierarchical inheritance
• hybrid inheritance
• is-A relation
• Has-A relation
• what is super keyword ?
• super.
• super()
• differences between super() and this()
• abstruct class and abstruct method
• interface
• defination interface
• difference between abstruct class and interface
• creating object for abstruct class and interface

Polymorphism

• what is Polymorphism?
• what is static Polymorphism?
• what is dynamic Polymorphism?
• what is binding
• what is method overloading
• what is method overridding
• what is constructor overloading
• differences between overloadind and overridding
• garbage collection in java
• inner class
• accessing inner class properties in java

package

• what is package
• what is predefined package
• what is userdefined package
• rules to design a user defined packages
• access modifiers in java
• java access specifier
• default is keyword or not

Exception Handling:

• error
• compiletime error
• Runtime error
• what is Exception Handling:
• types of Exception
• hierarchy of exception in java
• tracking exception
• tracking exception
• operations of try block
• handling of unknown exception
• throws keyword
• rethrowing of exception
• finally block
• userdefined Exception
• rules to design a userdefined exception
• throw keyword
• differences between throw and throws

String

• what is string handling
• string class
• stringbuffer class
• stringbuilder class

String class methods

• length
• charAt
• tolowercase
• touppercasse
• concat
• compreto
• compretoignorecase
• equals
• equalsignorecase
• startswith
• endswith
• indexof
• lastindexof
• substring
• trim

StringBuffer class methods

• insert
• delete
• append
• replace

array

• what is array
• types of arrays
• single dimensional array
• multi dimensional array
• array initilization
• array declaration
• array assignment

collections

• what is collection object
• what is collection framework
• List Interface
• set Interface
• map Interface

List Interface

• Array List
• vector
• stack
• linked list

set Interface

• hashSet
• linked hashSet

Map Interface

• hashMap
• hashTable

Array List methods

• add()
• add()
• addAll()
• clear()
• remove()
• removeRange()
• contains()
• get()
• indexOf()
• isEmpty()
• set()
• size()
• toarray()
• clear()
• clone()
• difference between clone and addall

vector methods

• add()
• add()
• addAll()
• clear()
• remove()
• removeRange()
• contains()
• get()
• indexOf()
• isEmpty()
• set()
• size()
• toarray()
• clear()
• clone()
• what is difference between arraylist and vector

stack methods

• empty()
• peek()
• push()
• pop()
• search()
• removeRange()
• contains()

linkedList methods

• add()
• addfirst()
• addlast()
• getFirst()
• getLast()
• get()
• removeFirst()
• removelast()
• remove()
• clear()
• add(index,element)
• removeFirst()

hashSet class

• differences between list and set
• what is hashSet class
hashSet class methods
• add()
• remove()
• clear()
• size()
• clone()

linked hashSet class methods

• add()
• remove()
• clear()
• size()
• clone()

hashMap class methods

• put(key,value)
• get()
• isEmpty()
• remove()
• size()
• keyset()
• value()
• clear()
• containsKey()
• containsvalue()
• putAll()
• clone()
• size()

hashTable class methods

• put(key,value)
• get()
• isEmpty()
• remove()
• size()
• keyset()
• value()
• clear()
• containsKey()
• containsvalue()
• putAll()
• clone()
• size()

Retriving collections object data

• foreach loop
• iterator interface
• listiterator interface
• enumeration interfce

iterator interface methods

• hasNext()
• next()

ListIterator interface methods

• hasNext()
• next()
• hasprevious()
• previous()

enumeration

• what is enumeration
• previous()
• hasMoreElement()
• nextelement()

Date class

• what is Date class
• date format class()
• calendar class
• Date
• month
• year
• Hour
• Minite
• Second
• AM_PM/li>
• DAY_OF_Year
• stringtokenizer class in java

IO Streams

• what is file
• Different operations on files
• Byte stream classes
• character stream classes

Byte stream classes

InputStream classes
• FileInputStream
• DataInputStream
• SequenceInputStream
• ByteArrayInputStream
• BufferedInputStream
• ObjectInputStream

Output Stream classes
• FileOutputStream
• DataOutputStream
• ByteArrayOutputStream
• BufferedOutputStream
• ObjectOutputStream

character Stream classes

Reader classes
• fileReader class
• characterArray classes
• BufferedReader classes

Writer classes
• fileWriter class
• characterArrayWriter classes
• BufferedWriter classes

Swings

• What is swing
• difference between swings and awt
• Jbutton
• JLabel
• JTextField
• JPasswordField
• JCheckBox
• JRadioButton
• JOptionPane