Variables & Constants
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What is Variables & Constants?
Variables are named storage locations that hold data, and their values can be changed during the program's execution. In Scala, variables are declared using the var keyword. On the other hand, constants are also named storage locations, but their values cannot be modified once they are assigned. Constants are declared using the val keyword in Scala, making them immutable. Choosing between var and val depends on whether you need to change the value of a data item during the program's runtime.
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More in stage 3: Variables & Constants
Variables & Constants: common questions
Can I learn Variables & Constants in Hindi?
This lesson is written in English. Once you sign in, open it in the interactive course and ask the AI tutor to explain Variables & Constants in Hindi or Hinglish. The tutor answers from this lesson’s own text, so it stays on the syllabus, and it runs on your own Google, OpenAI or Anthropic key.
Is this Variables & Constants tutorial for beginners?
It is lesson 7 of 165 in the free Scala roadmap, in stage 3, Variables & Constants. If you are new to Scala, start from stage 1 and come back here in order; if you already know the earlier stages, this lesson stands on its own.