Java And PHP Complete Course For Java And PHP Beginners

Learn to write java hello world program in eclipse by creating java project and package, defining a hello world class with a main method, and using System.out.println to display output.

Explore Java arithmetic operators, using a scanner to read two integers and perform addition, subtraction, multiplication, division, and modulus, illustrating integer results and printing them.

Explore Java unary operators, including unary minus, pre and post increments, and pre/post decrements, illustrated with integer variables and boolean results.

Demonstrates Java bitwise operators, including not (tilde), and (&), xor (^), and left/right shifts, with byte examples and a two's complement explanation of negative results like -13.

Learn how relational operators in Java evaluate boolean expressions, using a boolean result variable to demonstrate ==, <, <=, >, >=, and != with printed outcomes.

Explore how conditional operators work in Java using bool one and bool two to compute result with || and &&, showing true when at least one or both are true.

Explore input and output techniques in java, including System.out.println, the System class, and Scanner for keyboard input to print values like x and pi.

Explore how to use strings in Java, create strings from character arrays with the string constructor, read input with Scanner, and perform assignment and concatenation using the plus operator.

Explore how to use Java's built-in string functions, including length, equals, equalsIgnoreCase, and charAt, with practical examples. Learn substring, indexOf, lastIndexOf, replace, startsWith, endsWith, split, and trim to manipulate strings.

Explore StringBuffer and StringBuilder in Java, including how capacity is determined by initialization and input length, and how append, insert, and reverse operations modify content.

Explore the static keyword in Java, showing how static variables and methods belong to the class, are shared across objects, and how non-static members remain per instance.

Define a Java class with name, ID, and major, create objects using new, and use setName, setMajor, and display to print student details.

Explore the boolean datatype in Java, showing a boolean variable that holds true or false, and demonstrating a type mismatch error when assigning 100.

Demonstrates the Java char data type by declaring a char with a single quoted character like 'A' and printing it, and shows Unicode hex 0041 equivalence.

Explain how the this keyword differentiates instance variables from parameters in java, how this() calls the parameterized constructor, and how a non-parameterized constructor initializes defaults and prints A and B.

Define a custom Java exception and enforce an age threshold of 18 via throw and try-catch, displaying the error message and stack trace.

Learn how to implement a Java switch case using a scanner to read a character, handle cases A, B, C, D or default, and manage break and fall-through.

Explore how to declare and initialize int, float, and char arrays in Java, with zero-based indexing, scanner input, and printing using for and for-each loops.

Demonstrates using ArrayList in Java to store city names, add elements, check size, and iterate with a for-each loop, including inserting at a specific index.

Demonstrates thread synchronization in Java with a synchronized block around a shared transfer object's sendMessage method. Shows how multiple threads print in order versus interleaved output when synchronization is removed.

Demonstrate using Java vectors: create a vector of integers, add elements, print size and contents, iterate with for each loop, insert at a specific index, and update size to six.

Demonstrates organizing code with Java packages by defining a my math class in the math package, implementing subtract, multiply, divide, and a recursive factorial, and showing cross-class usage.

Learn how the animal base class defines movement and how dog and frog override movement, printing class-specific messages and invoking super movement to demonstrate inheritance and polymorphism.

Explore function overloading in Java polymorphism by examining overloaded Ada methods with different signatures and how inputs select the correct overload for rectangle, square, and circle areas.

Explore the Java set interface and its operations, including union, intersection, and difference, with practical examples of creating two integer sets with no duplicates using a for-each loop.

learn how to work with real data types in Java by using float and double variables, including casting, printing results, and understanding memory size and precision.

Learn to use the Java stack class to push integer objects, check the top with pick, print size, and pop elements until the stack is empty.

Define and use a Java queue from java.util, instantiate a linked list-based queue, add five elements, print its size, peek at the front, and remove items in FIFO order.

Explore abstract classes and abstract methods in Java, then extend and implement them, override behavior, and instantiate objects to see programmer, tester, and salary examples run.

Create a Java priority queue by implementing Comparable in a student class with rank and name, overriding compareTo and toString, then add and poll students by rank.

Demonstrate Java inheritance by defining an employee with a protected salary and two derived classes, developer and tester, that add bonuses to reveal total salaries.

Discover Java commenting techniques, including single line // comments and multi-line block comments, and use Eclipse shortcuts to toggle, add, or remove comments in code.

Demonstrate creating and manipulating a Java linked list of integer wrappers, adding elements, checking size, printing contents, and inserting another list at a specific index using addAll.

Explore Java interfaces, including default and static methods, extends relationships, and implementing classes; learn about abstract classes, interface objects, and practical examples like vehicles, bikes, and cars.

Learn how to implement multithreading in java by extending the thread class, overriding run, looping 0–9 with 100 ms thread.sleep, executing in parallel with the main thread.

Define a class that implements Runnable, override the run method, create thread objects, start them, and observe how parallel execution yields interleaved, non-deterministic output.

Explore how Java hash map works, including null keys and values, lack of guaranteed order, and how put updates existing keys while demonstrating map contents and containsKey checks.

Explore how a hash table in Java maps string keys to integer values, using put and get, handling unique keys, updating existing keys, and finding the maximum marks.

Explore Java functions, including user defined and library functions, with recursive and non-recursive examples, function prototypes, return types, and using pow from the Math library.

explains the Java final keyword for variables, methods, and classes, showing single time initialization, non-overridable methods, and non-extendable classes through examples.

Learn how to use the Java comparator interface by implementing the compare method to sort a list, demonstrated with a city list in alphabetical order.

Master the break statement in Java by exiting a while true infinite loop. See a count from 0 to 10 with prints before the program ends.

Explore the Java continue statement within an infinite while loop, skipping the rest of the loop for a between 5 and 10 inclusive, and breaking at 15.

Explore the Java for loop syntax, including initialization, condition, and increment, and see how the loop control variable sums values from 0 to 9 to reach 45.

Uses a Java while loop to count from 0 to 9, printing each a and adding to sum. Exits when a reaches 10, producing a final sum of 45.

Learn how to read character by character from a file and write to another in Java using file input stream and file output stream, handling end of file and exceptions.

Explore java constructors, including parameterized and non-parameter constructors, initialize account fields, deposit money to update balance, and display details.

Explore Java exception handling with a hands-on demo of try catch finally, division by zero, arithmetic and number format exceptions, and multi-catch strategies using user input.

The lecture demonstrates creating and populating a word list using a vector and a linked list, then retrieving elements with an enumeration and an iterator inside a while loop.

Explore Java wrapper classes by creating integer objects, parsing strings with parseInt, and converting values to binary and hex with toBinaryString and toHexString.

See how Java access specifiers govern visibility within the same package and across classes, including inheritance, and highlight public, private, protected, and default scope with constructors and displays.

Explore Java built-in exceptions, including array index out of bounds, null pointer, and number format exceptions, and learn to handle them with try-catch blocks and clear remedial messages.