This worksheet is also available in PDF format. When the black output window opens right click on the Plato icon in the top left corner.

Frigidairs ice maker wiring harness thermal fuse full It's up to you, just use your imagination. It could, for example, print out their year of birth with a suitable message. Include input and output using read and print. You might include different types of variables, for example realintegerand character. Time has shown that one of the commonest reasons for error in a program is the incorrect use of variables. In the bad old days of programming, declaration of variables was thought to be unnecessary and the old FORTRAN compilers used an implicit convention that integers have names starting with the letters in the range i - n, all the others being real. The example below has a maximum length of 10 characters allowed for a person's name - this might not always be enough! If this doesn't seem enough - don't worry we'll come back later on when we examine how to increase the number of digits of precision in Worksheet 5. The real variable type gives us 6 figure decimal precision. Program convertbelow, demonstrates their use.

We can also specify that numbers are integer and character.

So far, we have only used real floating point numbers in our programs. Double clicking on the message will take you to the line in the program where the fault occurs. The compiler will report two error messages when it attempts to compile. You will come across errors many times as a programmer, and it is helpful to have a strategy for how to deal with them. The purpose of this exercise is to show you the various kinds of errors you may encounter when programming. The following program has a number of errors. We may output several items at one time, provided they are separated by commas. Provided you have given your file the appropriate extension, Plato's editor will be able to check the syntax of the program, highlighting the various keywords that it knows about using a colour code to distinguish between the various elements of the language. We tell Plato which language we are using when we create our empty file and save it with a. Plato's editor is special - it understands the syntax of various programming languages. Within Plato, you can create and edit programs and get them to run. This worksheet makes use of several examples programs that are all available for download from this website.

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