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Can you explain what is meant by type safety in programming?

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Answer from AI

Type safety in programming means that the language and runtime environment prevent operations with incompatible data types, reducing the number of errors during execution.

This is achieved through:

  • Type checks during compilation (static typing), where type errors are identified before the program runs.
  • Restrictions on operations that can be performed with certain types.
  • The use of strict typing to prevent, for example, assigning a number to a string without explicit conversion.

Example in C#:

int number = 5;
string text = "hello";
// number = text; // Compilation error: cannot assign string to int

Thus, type safety helps avoid many errors related to incorrect data usage.