ProxySorterExamples.java

void sortStringArray() {
	final String[] strings = new String[]{"g", "f", "r", "u", "a"};
	final int[] proxy = ProxySorter.sort(
		strings, strings.length,
		(a, i, j) -> a[i].compareTo(a[j])
	);

	// Printing strings in ascending order.
	for (int index : proxy) {
		System.out.println(strings[index]);
	}
}

void sortNodeList() {
	final NodeList list = newNodeList();
	final int[] proxy = ProxySorter.sort(
		list, list.getLength(),
		(l, i, j) -> l.item(i).getNodeName().compareTo(l.item(j).getNodeName())
	);

	// Print the XML nodes, sorted by node name.
	for (int index : proxy) {
		System.out.println(list.item(index).getNodeName());
	}
}

void sortIntFunction() {
	final IntFunction<Double> function = i -> Math.sin(i/25.0);
	final int[] proxy = ProxySorter.sort(
		function, 100,
		(f, i, j) -> Double.compare(f.apply(i), f.apply(j))
	);

	// Printing the function values in ascending order.
	for (int index : proxy) {
		System.out.println(index + ": " + function.apply(index));
	}
}