What are the differences between constants in programming languages?
Constants are fixed values that cannot be altered during program execution. Different languages have different ways to define them.
Can you give examples of how constants are defined in languages like Java and Python?
In Java, you use the final
keyword, like final int MAX_VALUE = 100;
. In Python, you typically use uppercase variable names, like MAX_VALUE = 100
, but it's a convention, not enforced.
Are there any languages that enforce constant values more strictly?
Yes, languages like C++ allow you to define constants using the const
keyword, which enforces immutability at compile time.
What about in JavaScript? How do constants work there?
In JavaScript, you can define constants using the const
keyword, which prevents reassignment, like const PI = 3.14;
.
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