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Java programming codes examples

 

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Java programming language Codes Examples:-


Link:-https://drive.google.com/file/d/19Db2WIrKUJogQoABprgmtIw9mRWryCMo/view?usp=drivesdk



What is Java Virtual Machine?

The Java Virtual Machine acts as an additional abstraction layer between the Java platform and the underlying machine hardware. Java source code can run only on those machines that have JVM installed on them. The answer to why the Java Virtual Machine is needed lies in the history of programming.

The history of programming

When natural programming languages were first developed, they fell into two broad categories, depending on how they communicated with the underlying hardware.

  1. Compilers: The complete program is written in natural English-like syntax with compilers, and the language then compiles (or translates) the entire code into machine code. The compiled code is then run on the hardware.
  2. Interpreters: With interpreters, every high-level code statement is interpreted into machine code on the fly.  Written statements are run immediately by the hardware before looking at the next statement.

  3. rules used to write algorithms such as primitive data types, if/else blocks, loops, etc.

    APIs are important software components bundled with the Java Platform. These are pre-written Java programs that can plug and play existing functionality into your own code. For example, you could use Java APIs to get the date and time, perform mathematical operations, or manipulate text. 

    Any Java application code written by a developer will typically combine new

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