What is basic topic in Java? from shrutidesai's blog

Java is a widely-used, object-oriented programming language that has several fundamental topics essential for beginners. Here are some of the basic topics in Java:

• History and Evolution: Understanding the origins and development of Java.
• Features of Java: Platform independence, object-oriented, simple, secure, etc.
• Java Environment: JDK (Java Development Kit), JRE (Java Runtime Environment), and JVM (Java Virtual Machine).
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• Java Program Structure: Understanding the structure of a Java program including the main method.
• Data Types: Primitive data types (int, char, double, boolean, etc.) and non-primitive data types (arrays, strings, classes).
• Variables: Declaration, initialization, and scope of variables.
• Operators: Arithmetic, relational, logical, bitwise, assignment, and other operators.

• Conditional Statements: if, if-else, switch.
• Looping Statements: for, while, do-while loops.
• Branching Statements: break, continue, return.

• Classes and Objects: Creating classes and objects, understanding the relationship between them.
• Methods: Defining and invoking methods, method overloading.
• Constructors: Default and parameterized constructors.
• Inheritance: Extending classes, the use of super keyword, method overriding.
• Polymorphism: Compile-time (method overloading) and run-time (method overriding) polymorphism.
• Encapsulation: Using access modifiers to protect data.
• Abstraction: Abstract classes and interfaces.

• String Handling: String class and its methods, StringBuilder, and StringBuffer.
• Collections Framework: List, Set, Map, and their implementations like ArrayList, HashSet, HashMap.
• File I/O: Reading from and writing to files using classes in the java.io package.

• Types of Exceptions: Checked and unchecked exceptions.
• Try-Catch Block: Using try, catch, finally blocks.
• Throw and Throws: Throwing exceptions and declaring them.

• Thread Creation: Extending Thread class or implementing Runnable interface.
• Thread Lifecycle: New, runnable, blocked, waiting, timed waiting, terminated.
• Synchronization: Managing access to shared resources.
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