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I will show you 2 visual tips 

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that will give you feedback when
you type expressions. 

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Let’s imagine that I write C, uppercase,
that’s the start 

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of a class name. It is in italics
because it shows that

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in the system there are indeed 
classes beginning with letter C.

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So now, if I write Color,
we see that there is

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one and the system detects one.

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If I write Colox,
it is red, meaning: “I don’t

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have classes beginning with this 
prefix. 

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There is the same thing for methods.

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If I write nx, it will be red.

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“nne” also. However,
“ne” shows that “New” exists.