Basic Structure Of Java Program

Author: kishanrajput23

2.Basic_structure_of_java_program/README.md

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+# Basic Structure of a Java Program: Understanding our First Java Hello World Program
+
+## Basic Structure of a Java Program
+
+```
+package com.company; // Groups classes
+public class Main{	// Entrypoint into the application
+	public static void main(String[]args){
+		System.out.println(“Hello World”);
+	}
+}
+```
+
+## Working of the "Hello World" program shown above :
+
+### 1. package com.company :
+- Packages are used to group the related classes.
+- The "Package" keyword is used to create packages in Java.
+- Here, com.company is the name of our package.
+
+### 2. public class Main :
+- In Java, every program must contain a class.
+- The filename and name of the class should be the same.
+- Here, we've created a class named "Main".
+- It is the entry point to the application.
+
+### 3. public static void main(String[]args){..} :
+- This is the main() method of our Java program.
+- Every Java program must contain the main() method.
+
+### 4. System.out.println("Hello World"):
+- The above code is used to display the output on the screen.
+- Anything passed inside the inverted commas is printed on the screen as plain text.
+
+### 5. Naming Conventions
+- For classes, we use Pascal Convention. The first and Subsequent characters from a word are capital letters (uppercase).
+- Example: Main, MyScanner, MyEmployee, CodeWithHarry
+- For functions and variables, we use camelCaseConvention. Here the first character is lowercase, and the subsequent characters are uppercase like myScanner, myMarks, CodeWithHarry
+
+### Handwritten Notes: [Click To Download](https://api.codewithharry.com/media/videoSeriesFiles/courseFiles/java-tutorials-for-beginners-2/IntroToJava.pdf)
+
+### Ultimate Java Cheatsheet: [Click To Download](https://api.codewithharry.com/media/videoSeriesFiles/courseFiles/java-tutorials-for-beginners-2/UltimateJavaCheatSheet.pdf)