Introduction To Java

Author: kishanrajput23

1.Introduction_to_java/README.md

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+# Introduction to Java + Installing Java JDK and IntelliJ IDEA for Java
+
+- Java is one of the most popular programming languages because it is used in various tech fields like app development, web development, client-server applications, etc.
+- Java is an object-oriented programming language developed by Sun Microsystems of the USA in 1991.
+- It was originally called Oak by James Goslin. He was one of the inventors of Java.
+- Java = Purely Object-Oriented.
+
+## How Java Works?
+- The source code in Java is first compiled into the bytecode.
+- Then the Java Virtual Machine(JVM) compiles the bytecode to the machine code.
+
+<img src="https://api.codewithharry.com/media/videoSeriesFiles/courseFiles/java-tutorials-for-beginners-1/base64.png" alt="">
+
+## Java Installation:
+
+### Step 1:  Downloading JDK 
+- JDK stands for Java Development Kit. It contains Java Virtual Machine(JVM) and Java Runtime Environment(JRE).
+- JDK – Java Development Kit = Collection of tools used for developing and running java programs.
+- JRE – Java Runtime Environment = Helps in executing programs developed in JAVA.
+- [Click here](https://www.oracle.com/java/technologies/javase-jdk16-downloads.html), and you will be redirected to the official download page of JDK. 
+- Select your operating system and download the file(executable file in case of Windows).
+
+### Step 2: Installing JDK
+- Once the executable file is downloaded successfully, right-click and open the file.
+- The executable file will start executing.
+- Keep clicking on the Next button to install the JDK in default settings.
+
+### Step 3: Downloading IntelliJ IDEA :
+- We need an Integrated Development Environment(IDE) to write and debug our code easily.
+- IntelliJ IDEA is the best-suited IDE for writing Java code.
+- [Click here](https://www.jetbrains.com/idea/download/#section=windows), and you will be redirected to the official download page of IntelliJ IDEA.
+- Download the Community Version of the IntelliJ IDEA as it is free to use.
+
+### Step 4: Installing IntelliJ IDEA :
+- Once the download completes, open the .exe file, and the installation process will begin.
+- Click on the **"Next"** button to install the IntelliJ IDEA in the default location.
+- Do not forget to check **"Add launchers dir to the PATH,"** as shown in the below image.
+
+<img src="https://api.codewithharry.com/media/videoSeriesFiles/courseFiles/java-tutorials-for-beginners-1/Idea_installation.png" alt="">
+
+- After this, click on the "Next" button and then click on the **"Install"** button.
+
+### Handwritten Notes: [Click To Download](https://api.codewithharry.com/media/videoSeriesFiles/courseFiles/java-tutorials-for-beginners-1/IntroToJava.pdf)
+
+### Ultimate Java Cheatsheet: [Click To Download](https://api.codewithharry.com/media/videoSeriesFiles/courseFiles/java-tutorials-for-beginners-1/UltimateJavaCheatSheet.pdf)