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Parts of JAVA 1www.gowreeswar.com
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Features of JAVA 2www.gowreeswar.com
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History of JAVA When Where Why who 3www.gowreeswar.com
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What is JVM,JRE,JDK 4www.gowreeswar.com
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Difference b/w Java and C++ 5www.gowreeswar.com
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Comments Single line Multi line Documentation Annotations-@ 6www.gowreeswar.com
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Naming Convention 7www.gowreeswar.com
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Explain public static void main(String[] args) 8www.gowreeswar.com
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Operators 9www.gowreeswar.com
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Tokens 10www.gowreeswar.com
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Scanner Package Use methods 11www.gowreeswar.com
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BufferedReader Package Use methods 12www.gowreeswar.com
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Control structures 3 types Selection or Decision Loops or Iterate Branching or Jumping 13www.gowreeswar.com
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Selection or Decision ifif-elsenested if switch-case 14www.gowreeswar.com
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if 15www.gowreeswar.com
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if-else condition falsetrue else block if block 16www.gowreeswar.com
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nested if 17www.gowreeswar.com Condition 1 Condition 2 Condition-n statements false true
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switch-case case 1 case 2 case 3 matched unmatched Statements 1 Statements 2 Statements 3 matched unmatched 18www.gowreeswar.com
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Loops or Iterate for while do – while for each 19www.gowreeswar.com
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Branching or Jumping breakcontinuereturn 20www.gowreeswar.com
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Array 21www.gowreeswar.com Definition Advantage Types syntaxes Jagged Array
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Command Line Arguments 22www.gowreeswar.com Definition
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String 23www.gowreeswar.com Definition package Ways to construct Methods
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StringBuffer 24www.gowreeswar.com Definition package Ways to construct Methods
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StringBuilder 25www.gowreeswar.com
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Object Oriented Program System concepts 26www.gowreeswar.com
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What is abstraction? 27www.gowreeswar.com Implementation hiding
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What is Encapsulation 28www.gowreeswar.com Data hiding Security Initialization of instance fields
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What is Inheritance 29www.gowreeswar.com Syntax Advantage Relationship Disadvantage Keyword Access specifier Types
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Polymorphism 30www.gowreeswar.com Types How to achieve Advantages of both
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Constructor 31www.gowreeswar.com Definition Rule Use Types
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this 32www.gowreeswar.com What it is Definition When it is use
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Variables 33www.gowreeswar.com Definition Types Differences among
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Blocks 34www.gowreeswar.com Definition Types When it is call
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Methods 35www.gowreeswar.com Definition Syntax Types When static method use
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Difference b/w constructor and method 36www.gowreeswar.com
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Anonymous object 37www.gowreeswar.com Anonymous means When it is better
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Method overloading 38www.gowreeswar.com Definition Advantage Types
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Array of Employee Objects prog… 39www.gowreeswar.com
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Inheritance programs 40www.gowreeswar.com Single Multi level Hierarchical Multiple Hybrid
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super 41www.gowreeswar.com What it is Definition When it is use
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Aggregation 42www.gowreeswar.com Relationship
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Method Overriding 43www.gowreeswar.com Definition Advantage Rules
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final 44www.gowreeswar.com What it is Where it is use (V-M-C) Blank final variable Final parameter
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static 45www.gowreeswar.com what it is Where it is use(B-V-M-C)
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Type casting 46www.gowreeswar.com Implicit-explicit Upcasting-downcasting Generalization –specialization
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abstract 47www.gowreeswar.com What it is Where it is use(M-C)
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Can I use both final & abstract to class at a time 48www.gowreeswar.com Ans:--no
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Can I use both static and abstract to method at a time 49www.gowreeswar.com Ans:--no
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interface 50www.gowreeswar.com Definition Synatx Advanrage
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Difference b/w abstract class and interface 51www.gowreeswar.com
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package 52www.gowreeswar.com Definition Advantage Types Keyword Rule Diff imports Packages explanation
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Creating jar file 53www.gowreeswar.com jar cvf0 TicTacToe.jar TicTacToe.class audio images
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java.lang package 54www.gowreeswar.com Object System Runtime Class
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JVM architecture & tasks 55www.gowreeswar.com Class loaders Byte code verifier Memory ( 5 parts) Exec (interpreter+JIT) gc()
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finalize method 56www.gowreeswar.com Which class method When it is executed
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native 57www.gowreeswar.com What it is
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cloning 58www.gowreeswar.com Definition Which class method it is Which interface to achieve advantages
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Inner class 59www.gowreeswar.com Types Advantages
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Exception handling 60www.gowreeswar.com try catch finally throw throws Types Difference b/w c.k and u.c.k
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Wrapper class 61www.gowreeswar.com Uses Boxing Unboxing Types Conversions
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Collection framework www.gowreeswar.com62 Package Definition Advantages Types Hierarchy Retrieving Auto boxing
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Some more Util package classes 63www.gowreeswar.com Arrays Collections StringTokenizer Calendar Date
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SimpleDateFormat class 64www.gowreeswar.com Package Use
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Multi threading 65www.gowreeswar.com Ways to execution Definition Ways to create a thread Naming a thread Priority
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Some more on multi threading 66www.gowreeswar.com Thread life cycle Join method Daemon thread Inter thread communication Thread Group
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Streams and Files 67www.gowreeswar.com Definition advantage Hierarchy
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Serialization 68www.gowreeswar.com Definition Why it is required Deserialization Externalization
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Networking 69www.gowreeswar.com package Advantage
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AWT 70www.gowreeswar.com Abbreviation Packages CUI-GUI Component Window Frame Ways to create frame Close frame Event delegation model
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Layouts-Listeners 71www.gowreeswar.com package Definition Advantage Types
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Swing 72www.gowreeswar.com JFC package Features of JFC Windowpane types MVC model
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Applet 73www.gowreeswar.com package Advantage
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Reflection 74www.gowreeswar.com Package Advantages
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JSE 5 75www.gowreeswar.com Features
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JSE 7 76www.gowreeswar.com Features
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