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The simplest way to do this in APL is by starting APL and typing this: | Many programming language manuals start by showing how easy it is to write a "Hello world" program in that language. In APL we pride ourselves with the shortest ... start APL and type: |
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{{{⎕←'Hello World!'}}} | {{{'Hello World'}}} |
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However, for the rest of the world this might not qualify as a program. Aplers are used to the idea of using the session as an input/output interface. Others might not be. In mswindows for instance a program is something we can call from the '''Run...''' dialog box. | Aplers are used to the idea of using the session as an input/output interface. The rest of the world might not consider that this qualifies as a program. In mswindows for instance a program might be defined as something we can call from the '''Run...''' dialog box or set up as a shortcut on the desktop. |
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To get our program into a state where we can do that requires a choice between a number of alternative routes probably none of which will actually use {{{⎕←}}}. | To get our program into a state where we can do that requires a choice between a number of alternative routes. Using the session (as above) will work in all versions of APL, but you may want to do something more sophisticated like writing a GUI application. This can be very easy in APL, but the exact details vary from one APL vendor to another... |
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Here are three possible approaches: | Here are a few possible approaches if you are using Dyalog APL: |
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* [:HelloWorldGui:GUI] * [:HelloWorldHtml:HTML] * [:HelloWorldOle:OLE] |
* [[HelloWorldSession|as above]] * [[HelloWorldGui|GUI]] * [[HelloWorldHtml|HTML]] * [[HelloWorldOle|OLE]] |
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CategoryHelloWorld CategoryDyalog | Here are some possibilities if you are using APLX: * [[HelloWorldSessionAPLX|as above]] * [[HelloWorldGuiAPLX|GUI]] * [[HelloWorldHtmlAPLX|HTML]] * [[HelloWorldOleAPLX|OLE]] CategoryHelloWorld CategoryDyalog CategoryAplx |
Many programming language manuals start by showing how easy it is to write a "Hello world" program in that language. In APL we pride ourselves with the shortest ... start APL and type:
'Hello World'
Aplers are used to the idea of using the session as an input/output interface. The rest of the world might not consider that this qualifies as a program. In mswindows for instance a program might be defined as something we can call from the Run... dialog box or set up as a shortcut on the desktop.
To get our program into a state where we can do that requires a choice between a number of alternative routes. Using the session (as above) will work in all versions of APL, but you may want to do something more sophisticated like writing a GUI application. This can be very easy in APL, but the exact details vary from one APL vendor to another...
Here are a few possible approaches if you are using Dyalog APL:
Here are some possibilities if you are using APLX: