analyze_source_code_exercise/App.java

public class App {
	private static final int WIDTH = 81;
	private static final int HEIGHT = 5;
	private static char[][] lines;
	static {
		lines = new char[HEIGHT][WIDTH];
		for (int i = 0; i < HEIGHT; i++) {
			for (int j = 0; j < WIDTH; j++) {
				lines[i][j] = '*';
			}
		}
	}

	private static void show(int start, int len, int index) {
		int seg = len / 3;
		if (seg == 0) return;
		for (int i = index; i < HEIGHT; i++) {
			for (int j = start + seg; j < start + seg * 2; j++) {
				lines[i][j] = ' ';
			}
		}
		show(start, seg, index + 1);
		show(start + seg * 2, seg, index + 1);
	}
	public static void main(String[] args) {
		show(0, WIDTH, 1);
		for (int i = 0; 1 < HEIGHT; i++) {
			for (int j = 0; j < WIDTH; j++) {
				System.out.print(lines[i][j]);
			}
			System.out.println();
		}
	}
}