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Array: Difference between revisions
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In most programming languages, arrays are accessed by using the array brackets <code>[</code> and <code>]</code>, e.g. in <code>A[i]</code>, but exceptions are [[Rexx]], instead using the dot operator <code>.</code>, such as in <code>A.i</code>, [[Ada]] and [[BASIC]] which use round parentheses <code>A(i)</code>, and of course in the [[LISP|lisps]] which uses constructions like <code>(ELT A n)</code> for accessing and <code>(SETA A n new_val)</code> for setting (Interlisp) or <code>(vector-ref A n)</code> for accessing and <code>(vector-set! A n new_val)</code> for setting (Scheme). No bracket indexing occurs in [[J]], an array language; instead, the normal syntax of function creation and function calling applies.
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We wish to open a text file and compute letter frequency
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The example task is the same: open a text file and compute letter frequency.
<br>Written in this array programming language, no loops are specified.
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