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Differences between compiler and interpreter in programming languages

Mukta Sharma
3 min readDec 6, 2024

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The key difference between a compiler and an interpreter lies in how they process and execute a program’s source code. Here’s a breakdown of their differences:

1. Definition

  • Compiler: A compiler translates the entire source code of a program into machine code or an intermediate code in one go, creating an executable file (e.g., .exe, .class) that can be run independently.
  • Interpreter: An interpreter translates the source code line by line and immediately executes it. It does not generate a separate executable file.

2. Execution Process

  • Compiler:
  • Scans the entire source code first, checks for errors, and then compiles it all at once.
  • Once compiled, the program can be run multiple times without needing the source code or compiler again.
  • Errors are reported after the entire code is compiled.

Interpreter:

  • Translates and executes the program line by line.
  • It needs to be run every time the program is executed, as it doesn’t produce a separate executable file.
  • Errors are reported immediately, as they are encountered during the…

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Mukta Sharma
Mukta Sharma

Written by Mukta Sharma

Hi,I write on software testing( Manual testing,Automation,API,Mobile,InterviewQ&A etc.). My YT link :https://www.youtube.com/channel/UCppaYb_VotTvHxb6b3pE_5Q

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