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Category:Elena: Difference between revisions
→The simplest program
Line 16:
To create a simple console program we have to declare the program symbol in the project root namespace:
public program =
[
].
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The statement should be terminated by a dot (ELENA is inspired by Smalltalk and uses its syntax notations).
public program =
[
console writeLine("Hello!").
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Several message operations can be done in a single statement separated by a semicolon:
public program =
[
console writeLine("Hello!"); writeLine("How are you?").
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We may read a user input by sending readLine message without parameters:
public program =
[
console write("What is your name:"); writeLine("Hello " + console readLine).
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