KBASIC MANUAL PDF

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KBasic is a powerful programming language, which is simply intuitive and easy to learn. It is a new programming language, a further BASIC dialect and is related. DroidBasic_General Manual KBasic Software started development on DroidBasic in (C)opyright Bernd Noetscher’s KBasic Software – New set of manuals about KBasic KBasic was developed by KBasic Software and has aroused much interest in the Internet. If we have made any mistakes.

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If you set ‘myNumber’ to 9 instead of 20, no commands inside the loop execute.

The KBasic Manual – A Quick Reference Guide for the Development of KBasic Applications

Specifically, you can use the integrated visual debugger to examine code while it is running and browse your code at the level of project, class, or method. They can contain keywords, operator, variables, constants or even other expressions. A class method or variable can be used without creating an object. Loops repeat commands depending upon a condition. Create modern applications in zero time Instead you must provide proper methods in the classes that can copy an object. It is like a global variable.

Every time you construct an object, it follows all constructors of all parent classes up to the parent class ‘Object. Because of the way KBasic checks for the scope of a given variable, it is possible for you to create a variable in a lower scope such that a definition of that same manuap hides the original value of that variable.

For more information about using procedures see the previous chapter. Use the following loops when you are not sure how often a command should be repeated: Downcasting, the object ‘o’ contains more methods, variables than object ‘m’ and is therefore extended:. Special thanks to Nadja, my girlfriend, and to everyone who bought KBasic Professional, including all maual people who supported me in other ways.

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An object is an element of an application, such as a table, a form, or report. Kbxsic can also find and replace inside your source code as in a word processor. Another widely used statement in KBasic is the dimension statement.

The expression given as the argument to the ‘Select Case’-statement will be evaluated by kbasiv following. As in Mabual, all objects in KBasic are created with the New operator. Any numerical expression is allowed:. Eventually you will run into missing features, or a bug in the software. Hiding them leads to small, smart classes with a few variables and methods visible to others. Using named arguments may take a little longer to write, but they are less ambiguous and easier to understand, especially if other people have to maintain your code.

In fact, DroidBasic is a mature tool, ready for production! When assigning the value ‘Null’ to an object variable that has previously contained an mnaual reference, use the object variable to avoid accidentally changing the object.

Most commercial SQL databases have proprietary extensions in their DDL, which allow control over nonstandard features of the database system. Calling procedures with more than one argument The following example shows calling a sub-procedure with more than one argument. If a class does not have a constructor, KBasic implicitly inserts a standard constructor, which calls the parent constructor automatically.

Computers do not understand German, English or any other human language. Additionally, you can place a declaration to declare global-variable, class-variable, instance-variable in the declaration section of a class or module.

There are also more examples, mabual and news on the KBasic website at http: You can use it for free.

Scopes are useful when you would like to organize your program or want to avoid name collisions of variables. What’s in it for you? All kbasiv are connected together. Before using variables, you must declare them.

These include keywords e. Officially supported platforms are:. A class can only be declared inside a module-file not recommended or inside a class file. You can easily access hidden variables by casting its type to the parent type or using the keyword ‘Parent’. Serial Port About the possibility to use serial ports like RS For example, you may want to:. Returns ‘True,’ if the class name is the seeked name, or ‘False’ if it is different Syntax:.

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The difference is an internal meaning because variables are different when used in child and parent class they actually use their own variablewhile methods are used by both both parent and child class use the same method!

Optional arguments can have default values as seen in the following example:. The lifetime of variables is the time in which the variable exists or has a value. The test expression can be ‘True,’ ‘False,’ a numeric, or string expression.

Manual kbasic – Google Docs

It is also possible to mark a complete class as abstract; you cannot create an object of that class because this class contains declarations but no code. This loop reiterates through the loop as long as the expression is ‘True’. Therefore, please use the modern elements of the KBasic language which are described in this manual. If so, there might be a computer programmer somewhere inside you waiting to get out. Raise your own exceptions using the ‘Throw’-statement.

DML is the subset of the language used to add, update and delete data. The class is available while running your program at any time. Besides keywords, symbols, and names, a KBasic program contains literals.

In addition to displaying the error, KBasic opens the source file in the text editior and jumps to the exact line in the source code, where the error occurred. Visit the KBasic website at http: