Functions

Predefined functions are great.
Even better is that you can define your own function.

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Before we go deeper, we need to realize that we already have one function, main. The main function is the first function that gets executed when you click Run.

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Now let's define a function: greet(name). It will say hello to someone.

Steps:

• add a new function by clicking + on the left pane
• click on fun1 block and rename it to greet
• click + to add a new parameter and type name: String
• add a new Output and type "Hello " + name
• click main to go back to main function
• add a new Call block and type greet("Tom")

Run the program, it should display Hello Tom in the output.