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1. How to generate checksum hash for a ...How to generate checksum hash for a file in Kotlin

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   importStringUtils.encodeHex

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   importjava.io.File

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   importjava.io.FileInputStream

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   importjava.io.InputStream

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   importjava.security.MessageDigest

2. Install jdk from tar.gz file in UbuntuInstall jdk from tar.gz file in Ubuntu

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   sudo su

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   #create jvm directory

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   mkdir /usr/lib/jvm

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