Incorrect program logic is code that results in incorrect execution of instructions. Its semantic error.
Semantic errors are grammatically correct text that does not make sense. In the context of C#, an example would be “intx=12.3;”. 12.3 is not an integer literal. There is no implicit conversion between 12.3 and int so this statement doesn’t make sense. It is however grammatically correct.
Syntax errors and semantic errors are different. Syntax errors refer to incorrectly constructed source code. Semantic errors are logic failing to produce the correct result when executed.
Semantics refers to the study of language meanings. Semantics can be applied to whole texts or single words. Although “destination” and the “last stop” technically refer to the same thing, semantics students analyze their subtle shades of meaning.
Semantic errors can only be detected if you know what the program should do with a set of input data. Next, run the program using the input data you provided and compare the output to what you expected.
Semantic error is another name for logic error, where you write incorrect code. You might write n3=n1*n2, but you meant to divide. The compiler cannot tell if your algorithm should have been divided or multiplied. However, you instructed it to multiply.
Syntax refers simply to grammar and semantics to meaning. Syntax refers to the rules that ensure a sentence is correct grammar-wise; semantics refers to how one’s vocabulary, grammatical structure and tone combine to communicate its meaning.