One- and two-dimensional arrays and file handling

Learning objectives

Declare a one-dimensional array of a stated size and data type, store values in it using an index, and traverse it with a FOR loop

Declare and use a two-dimensional array, and use nested FOR loops to read or write every element by row and by column

Write programs that use an array to total, to count, to search for a given value and to find the largest and smallest entries

Write program code that opens a text file, writes a line of data to it, reads it back line by line until the end of the file is reached, and closes the file afterwards

Write a program that reads the contents of a file into an array, processes the data and writes the results back out to a file