3. Syntax of a List

• An empty list

Activity: CodeLens 3.1 (cl_l17_3a_en)

• A list with three grades.

Activity: CodeLens 3.2 (cl_l17_3b_en)

• Accessing a grade.

Activity: CodeLens 3.3 (cl_l17_3c_en)

• Changing the first grade.

Activity: CodeLens 3.4 (cl_l17_3d_en)

• Average of 5 grades.

Activity: CodeLens 3.5 (cl_l17_3e_en)

• Note: x += 1 is the same as x = x + 1.

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