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Pascal Programming

Pascal Programming. Complex Array Structures. Pascal Programming. Complex solutions, using Pascal or any other language, need to be reduced from the abstract to more concrete statements.

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Pascal Programming

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  1. Pascal Programming Complex Array Structures

  2. Pascal Programming • Complex solutions, using Pascal or any other language, need to be reduced from the abstract to more concrete statements. • The example in the text of parallel arrays to award a score and letter grade illustrates the validity of the observation.

  3. Pascal Programming Index 1 Index 2

  4. Pascal Programming • The solution to the problem arises from dual arrays with a single index. • Thus, data type notation and data structure become tightly related. • Data structure– any construct to store and manipulate data in a program or algorithm.

  5. Pascal Programming • In this solution, each array type is a data type. • The data structure combines the two arrays. • With these examples we know that available structures can include arrays of arrays and parallel arrays.

  6. Pascal Programming • Complex solutions require complex data structures. • An array’s component type can be comprised of any data type . . .so, it can be an array type. Thus we have an array or array types. • Consider a spreadsheet example . . .

  7. Pascal Programming

  8. Pascal Programming • If we substitute Sales for 1-3 and Territory for A-C, we reference 2C as … • Sales [2] Territory • Within the territory we have a monthly array of sales. • This illustrates the use of an array of array type.

  9. Pascal Programming • An array with more than one index is called a multidimensional array. • The declaration follows the form use to declare a simple or one dimensional array. • Multidimensional arrays have more than one index but they have similar other properties.

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