HELP! * GREY=local LOCAL HTML version of Foils prepared July 10 1996

Foil 51 Java Language -- More on Arrays

From Basic Lectures on Java Language Applets Graphics Networking Trip to China and Icase Tutorial -- July 12-28 and June 10-13 96. by Geoffrey C. Fox * See also color IMAGE

Subscripts are range checked in runtime and so vec[-1] and vec[128] will generate exceptions.
Array length can be extracted via the length instance variable, e.g.
  • int len = vec.length will assign len = 128.
Arrays can have dynamic sizing
  • int sizeofarray = 67;
  • int vec[] = new int[sizeofarray];
Multidimensional arrays are arrays of arrays
  • char icon[][] = new char[16][16]
  • These arrays can be "ragged":
    • int graph[][] = new int[2][];
    • graph[0][] = new int[4];
    • graph[1][] = new int[7];



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