Tutorial 2: Simple Java Programming
Syntactic and Semantic Errors Expressions and Data Types Conversions Writing Simple Programs Notes on Assignments
Tutorial 2: Simple Java Programming
COMP 202: Intro to Computing 1
Winter 2009
TA: Robert Rolnick E-mail: Robert.Rolnick@mail.mcgill.ca
Tutorial 2: Simple Java Programming
Syntactic and Semantic Errors Expressions and Data Types Conversions Writing Simple Programs Notes on Assignments
Tutorial 2: Simple Java Programming
1. Syntactic and Semantic Errors
2. Expressions and Data Types
3. Conversions
4. Writing Simple Programs
5.Notes on Assignments
Tutorial 2: Simple Java Programming
Syntactic Errors
Syntactic and Semantic Errors Expressions and Data Types Conversions Writing Simple Programs Notes on Assignments
Syntactic Errors Semantic Errors Debugging
Syntactic errors are caught by the compiler.
Produce consistent compile-time errors.
Depending on the language syntactic errors can be caused by case-sensitivity, white space, line delimiting, etc.
The compiler does not know what you mean. Therefore, it might find the error on a different line than where it occurs.
"Programs must be written for people to read, and only incidentally for machines to execute."
~Structure and Interpretation of Computer Programs
Tutorial 2: Simple Java Programming
Syntactic and Semantic Errors Expressions and Data Types Conversions Writing Simple Programs Notes on Assignments
Syntactic Errors Semantic Errors Debugging
Syntactic Errors: Example
The following code contains 4 errors:
public class SimpleClass {
public static viod main(string[] args) {
system.out.println("Hello World"): } }
What happens when we compile it?
Tutorial 2: Simple Java Programming
Syntactic and Semantic Errors Expressions and Data Types Conversions Writing Simple Programs Notes on Assignments
Syntactic Errors Semantic Errors Debugging
Syntactic Errors: Example (Continued)
Tutorial 2: Simple Java Programming
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