The calculateRectangleArea method is used to calculate the area of a rectangle based on its length and width. It takes in the length and width as input parameters and returns the calculated area.
Imagine you have a rectangular table that you want to cover with a tablecloth. You measure the length and width of the table, then multiply them together to find out how much fabric you need for the tablecloth.
Length: The length refers to the measurement of an object or shape from one end to another in one dimension.
Width: The width refers to the measurement of an object or shape from side to side in one dimension.
Return Type: The return type specifies what type of value a method will return after it has finished executing.
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