Explain what is the difference between constants and read-only variables?
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Answer / Shoyeb Ali
Constants are immutable values that cannot be changed after they are declared, whereas read-only variables are variables whose value can only be set once at the time of declaration but can be modified using a method or property. In C#, both constants and read-only variables are denoted with the readonly keyword, but constants are initialized with a value at the time of declaration, while read-only variables can be assigned a value later.
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