2.2 programming techniques

2.2 programming techniques

1. Syntax Error An error in the rules/grammar of the language Eg missing colon / spelling mistake

2. Logic Error The program is written to do something other than what the programmer intended Eg Resetting only the first 9 elements in an array instead of all 10.

3. Run Time Error: More difficult to spot as it can run a program without reporting an error. E.g. runs but Doesn’t give an output. Or the program hangs or Becomes inactive

4. data types

   • Real /Float Number with decimal Point
   • Integer Number without a decimal Point
   • String A series of characters/text
   • Character A single letter or symbol
   • Date/Time Date and Time in any format
   • Boolean Yes no, true false value

5. other info

   • Concatenate To join different data types together
   • Comments Use these to add comments in to your code to explain what you have done
   • Validation: An computer check to ensure that the data entered is sensible and reasonable. It does not check the accuracy of data.