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ks | Set explicit java version to JAVA_HOME #1

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34 changes: 33 additions & 1 deletion README.md
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# Java Standard Edition Set up Instructions

The Java version that is used for the examples demonstrated on the Spark Shell is Java 8 (specifically "adoptopenjdk8" openjdk ). This can be installed on your machines using the below commands
```
```shell
brew tap AdoptOpenJDK/openjdk
brew install --cask adoptopenjdk8
```
Please also note that for the above command to work, homebrew package manager should be installed on your machines. Please refer to this [link](https://brew.sh/) to install it.

Test the currently active Java version:
```shell
java -version
```

The output should look something like this:
```text
openjdk version "1.8.0_292"
OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_292-b10)
OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.292-b10, mixed mode)
```

If the version `1.8.0_*` is not displayed, set the Java home to version 1.8:
```shell
# print out available versions
/usr/libexec/java_home -V
```

Output:
```text
Matching Java Virtual Machines (4):
17.0.4 (arm64) "Amazon.com Inc." - "Amazon Corretto 17" /Users/_/Library/Java/JavaVirtualMachines/corretto-17.0.4.1/Contents/Home
1.8.371.11 (x86_64) "Oracle Corporation" - "Java" /Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home
1.8.0_292 (x86_64) "AdoptOpenJDK" - "AdoptOpenJDK (JRE) 8" /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jre/Contents/Home
1.8.0_292 (x86_64) "AdoptOpenJDK" - "AdoptOpenJDK 8" /Library/Java/JavaVirtualMachines/adoptopenjdk-8.jdk/Contents/Home
```

Set an explicit version:
```shell
export JAVA_HOME=`/usr/libexec/java_home -v 1.8.0_292`
```

# Python Set up Instructions
The Python version used is the latest version that comes with Anaconda (it is most simple and hassle-free, isn't it ?). So go to the anaconda link [here](https://www.anaconda.com/) and install the latest version most suitable for your machine processor.Once done, open a terminal, type "python" and hit Enter. It should start a python shell.

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