/**
* Crea una tabella sull'output out, per tutti i generi di sequenze, eseguendo tutti gli algoritmi
* su array di lunghezze via via crescenti, da step fino a maxLength
*/
static void makeTable(EnumSet<Algorithm> algorithms, int step, int maxLength, String fileName)
throws IOException {
;
FileWriter outFile = new FileWriter(fileName, false);
PrintWriter writer = new PrintWriter(outFile);
writer.println("sep=;");
writer.println(
"Test a on a int array: "
+ getProperty("os.name")
+ " Java "
+ getProperty("java.version"));
for (SequenceKind kind : SequenceKind.values()) {
writer.println(kind.toString());
System.out.println(kind.toString() + "\n");
for (Algorithm algo : algorithms) writer.print(";" + algo.toString());
writer.println();
for (int len = step; len <= maxLength; len += step) {
runAllAlgorithms(algorithms, kind, writer, len);
}
writer.println();
}
writer.close();
System.out.println();
System.out.println();
}
/**
* Crea una riga della tabella sull'output out, per sequenze di genere kind, eseguendo tutti gli
* algoritmi algorithms, su un array di lunghezza len
*/
static void runAllAlgorithms(
EnumSet<Algorithm> algorithms, SequenceKind kind, PrintWriter out, int len) {
int maxValue = (kind == SequenceKind.REPEATED_VALUES) ? len / 3 : 9 * len / 10;
int[] array = naturalRandomArray(len, maxValue);
if (kind == SequenceKind.ALMOST_SORTED) {
Arrays.sort(array);
swap(array, len / 3, 2 * len / 3);
}
out.printf("%6d;", len);
System.out.println(len);
for (Algorithm algo : algorithms) {
System.out.println(algo.toString());
int[] arrayCopy = Arrays.copyOf(array, array.length);
double time = executionTime(algo, arrayCopy);
out.printf("%9.2f;", time);
}
out.println();
System.out.println();
}