Programming errors

Some disabilities (errors) are occurring in program during coding. In computer language these errors are called bugs and the process of finding and removing these bugs is called debugging.

Types:

            There are three types of programming errors:

·         Syntax error.

·         Runtime error.

·         Logical error.

Syntax error:

            Syntax error occurs when the program violates one or more grammatical rules of a programming language.

*The compiler detects these errors as it attempts to translate the program.

 Example:

·         Missing of statement terminator.

·         Undeclared variable are used.

Runtime error:

            A runtime error occur when the program directs the perform illegal operation or task.

*Error detect at execution time.

Example:

·         Dividing a number by zero.

Logical error:

            Logical error occurs when a program follows a wrong or faulty logic or algorithm.

*Compiler does not detect logical error. It is detected by see the output or testing of the program.

Example:

·         If you put – instead of + so the output goes wrong.