Q.Categorise the following as syntax error, logical error or runtime error:

In programming, errors can be broadly classified into three main types based on when and how they occur:

Syntax Error

A syntax error occurs when the code violates the grammatical rules or structure of the programming language. The interpreter or compiler cannot understand the code because it's not written correctly according to the language's specifications. These errors are usually detected before the program starts executing, often during the compilation or interpretation phase. Examples include misspelled keywords, missing semicolons, or unmatched parentheses.

Logical Error

A logical error occurs when the program runs successfully without crashing, but produces an incorrect or unexpected output. The code is syntactically correct and executes without any runtime issues, but the underlying logic or algorithm implemented is flawed. These errors are often the hardest to debug because the program appears to work, just not as intended. Examples include using an incorrect formula, applying the wrong operator (e.g., + instead of -), or having an incorrect loop condition.

Runtime Error

A runtime error occurs during the execution of a program, after it has successfully passed the syntax check and started running. These errors cause the program to terminate abnormally or crash because an operation cannot be performed at that specific moment. They often arise from situations that are impossible to predict during compilation but become problematic with specific input data or system states.

Now, let's classify the given expressions:

a) 25 / 0 …

Understanding different types of errors is crucial for debugging and writing robust programs. Errors typically fall into three main categories: syntax errors, logical errors, and runtime errors. Let's define each before categorising the given examples.

Error Type Classification

1. Syntax Error:

   • These are errors that violate the grammatical rules of the programming language. The interpreter or compiler cannot understand the code because it's not written according to the language's structure.
   • They are usually detected before the program starts executing (often during the compilation or parsing phase).
   • Examples: Missing parentheses, misspelled keywords, incorrect indentation (in Python), or a colon where a semicolon is expected.
   • The program will not run until all syntax errors are fixed.

2. Logical Error:

   • These errors occur when the program runs successfully without crashing, but it produces an incorrect or unexpected output because of a flaw in the program's logic or algorithm.
   • The code is syntactically correct and executes without raising any exceptions.
   • They are the hardest to find because the program appears to work, but the results are wrong.
   • Examples: Using addition instead of multiplication, incorrect loop conditions, or applying a formula incorrectly.

3. Runtime Error:

   • These errors occur during the execution of the program, after it has successfully passed the syntax check.
   • They happen when the program attempts an operation that is impossible or invalid under the current circumstances, even if the operation itself is syntactically correct.
   • When a runtime error occurs, the program usually terminates abruptly and displays an error message (often called an "exception").
   • Examples: Division by zero, trying to access an index outside the bounds of an array/list, trying to open a file that doesn't exist, or running out of memory.

Now, let's categorise the given examples:

a) 25 / 0

This is a runtime error. …