What type of error is a violation of the rules of a programming language?

Finally you will run the object file to obtain the output. You will probably produce a program listing which is a printout or soft copy of the source program instructions as a reference while working and coding the program.

When the computer is interpreting or compiling a program that is your source code, an error, whether major or minor will cause it to either produce (output) results or not reach the stage of output at all. There are different types of errors which will cause your program to ‘crash’. We will be looking at some of these errors:

v Logic errors

Logic errors occur when the programmer makes mistakes in the sequence of the program statements such using the wrong formula or function ( ie using a MOD instead of SQR FUNCTION). The program will usually compile that the compiler converts the source code to object code. NOTE: that compilation with logic errors does not generate any syntax errors or any warning messages but when the program is run it produces the wrong results.

v Syntax errors

Syntax errors occur when a mistake is made in the programming language rules or violating the rules governing the structure of the language.  In short a syntax error occurs when the programmer fails to follow the rules of the programming language exactly. For example if a keyword such as input or print is spelt incorrectly or an endif was left out.

v Run-time errors or execution errors

Run-time errors occur as the program compiles or runs. These errors are usually due to unexpected events such as division by zero or lack of memory for the computer to manipulate the data or a loop with no end. Run-time errors can be very difficult to trace as the program may produce results most of the time.

Example: for x = 1 to 3

    Result = result/(average-1) when average is equal to 1 you will be dividing by zero, this cause the computer to hang-up or an error message will be produced.

v Debugging

Debugging is the process of finding errors in the source code (detection), understanding why they occurred (diagnosis) and correcting them. Errors are found through error messages generated by the program or the operating system or because the program does not behave as expected.

TESTING ALGORITHMS

Desk checking or dry running is the process of checking an algorithm for errors. You do this by pretending to be a computer and executing the steps in the algorithm one by one, while keeping a record or track of the results.

Trace table is a very useful tool which allows you to see the state of your algorithm with as much details as you wish. Each row of the table shows the state of one step in the algorithm and each column shows the value of a variable at that step. The trace table allows you to check the algorithm for errors. For example:

Complete the trace table for the following algorithm, given that the number 4 is the input value for X

Read X

 FOR M = 1 TO X DO

Y = X-M

Z = 5*Y- M

END.

PRINT Z

X         M         Y         Z

4

4

4

4

Testing

As you complete your program, you must ensure that it works for any correct input data that the user gives it. The testing phase is to detect errors or problems in the program.

Test data: the values that are used to test or check the correctness of the program. The test data should include a wide range of sample data including extreme values and inputs that are not valid.

Structured walk through: This is the process of performing a manual trace on the program to detect any possible errors.

Executing the program

If you have translated the program to its object code without errors, you can now execute the program and see the results. The final two terms commonly used with program execution are:

What type of error is a violation of the rules of a programming language?

saima jabeen answered

There are the following errors can occur:
Syntax Error:
A collection of rules for writing programs in a programming language is known as syntax. Syntax error is a type of error that occurs when an invalid statement is written in program. Complier detects syntax errors. A program containing syntax error cannot be complied successfully.

There can be many causes of syntax errors. Some important causes are as follows:
The statement terminator is missing at the end of statement.
A variable is used without declaration.
Logical errors
A type of error that occurs due to poor logic of the programmer is known s logical error. A logical error occurs when the program follows a faulty algorithm. A statement with logical error may produce unexpected and wrong results in the program.
These errors are difficult to find because compiler does not detect these errors. It can only be detected by examining the program thoroughly.

Run Time Errors
A type error that occurs during the execution of program is known as run time error. It is caused when a statement directs the computer to execute an illegal operation such as dividing a number by zero.

These are commonly caused due to wrong input from the user.

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What type of error is a violation of the rules of a programming language?

raaga answered

Different types of errors that can occur in C programs are discussed under the following headings:
1. syntax errors
2. logical errors
3. runtime errors

The syntax errors are those that occur by violation the syntax rules or language rules. These errors are detected by compiler so; the programmer can easily remove them. These are detected during the compilation process and program will not run until these errors are removed.

The logical errors are those that occur due to some programming flaw. It means code written by the programmer is syntactically correct but does not produce the required results because of wrong selection of algorithm to solve a problem.

These logical errors are not detected by compilers. The third type of errors is runtime errors . These errors occur due to some invalid value of any variable that is computed at runtime( division by 0 etc)

These are errors that can cause the termination of programs. These types of errors can be handled by careful analysis of algorithm chosen. The most severe type of errors are logical errors and secondly runtime errors. Because logical errors can't be detected by compiler but they exist. And runtime errors are those that when encountered, terminates the program without informing about any error. Thus, it becomes difficult for programmer to locate and remove such errors.

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What are the 3 types of error in programming?

The 7 Most Common Types of Errors in Programming and How to Avoid Them.
Top of the Article..
Syntax Errors..
Logic Errors..
Compilation Errors..
Runtime Errors..
Arithmetic Errors..
Resource Errors..
Interface Errors..

What are programming language errors?

Errors are the problems or the faults that occur in the program, which makes the behavior of the program abnormal, and experienced developers can also make these faults. Programming errors are also known as the bugs or faults, and the process of removing these bugs is known as debugging.

Which kind of error occurs if the rules of programming are not followed *?

Syntax Error In other words, syntax errors occur when a programmer does not follow the set of rules defined for the syntax of C language. Syntax errors are sometimes also called compilation errors because they are always detected by the compiler.