Object Oriented Programming

Array declaration methods, 1-D array, 2-D array, multi dimensional array, array obtaining is 2 step process, indexing and slicing, Jagged Array

difference between pointers and reference variables, pointer in C, reference variables in java, classes, methods in class, volume() method, class box, method with return type, method that takes parameters, constructors, setDim(), new box(), default constructor, how constructor eliminates default values? , parameterized constructors.

command line arguments, parse, int, float, double, parseInt(), parseDouble(), parseFloat(), varargs, variable length arguments, variable-arity method, JDK 5, strings, creating strings, immutable strings, length of string, accessor method, length(), concat(), indexOf(), charAt(), char to ASCII and ASCII to char, lowercase, uppercase, string literal, string class, new keyword

Continue statement in java, for loop, while loop, continue in inner loop, break as civilized form of goto, switch case, break inside inner loop

Encapsulation, Abstraction, Encapsulation vs abstraction, information and implementation hiding, javac file, meaning of public, static, void, string args[] , Sln() method, strongly typed language, primitive data types, integer, float, boolean, double, size of all data types, range of values, declaration, initialization, scope, lifetime, type conversion, type cast, type promotion, local variables, loop variables, operators, assignment, arithmetic, relational, logical, shift, bit wise,

Garbage collection, out of memory errors, how garbage collection really works, how an object can be unreferenced, nulling reference, assigning reference to other, anonymous object, finalize() method, protected method.

History of java, before java, C , C , Evolution of java, Memory access via pointer in C, Buzzwords, Simple, Object Oriented, Secure, Robust, Multi threaded, compiler, interpreter, java environment, machine level language, JVM, JDK, Java architecture, java run time environment, java bytecode, applet, secure, portable lexical issues, unstructured approach, state, behavior, principles of OOP: 1) Encapsulation 2) Abstraction 3) Polymorphism 4) Inheritance.

This keyword is very important. This includes 3 types of use in java. It can be used in 1) to refer current class instance variable 2) to invoke current class method 3) to invoke current class constructor.

Various Programming paradigms, Imperative programming, procedural programming, object oriented programming, parallel processing, declarative programming, low and high level, top down approach.