Question

关于Java的一个小程序（GPoint&Array&GLine ）

一点也看不懂....求解答....
public class YarnPattern extends GraphicsProgram {
/** Runs the program */
public void run() {
ArrayList pegs = createPegList();
int thisPeg = 0;
int nextPeg = -1;
while (thisPeg != 0 || nextPeg == -1) {
nextPeg = (thisPeg + DELTA) % pegs.size();
GPoint p0 = (GPoint) pegs.get(thisPeg);
GPoint p1 = (GPoint) pegs.get(nextPeg);
GLine line = new GLine(p0.getX(), p0.getY(),
p1.getX(), p1.getY());
line.setColor(Color.MAGENTA);
add(line);
thisPeg = nextPeg;
}
}

/* Create an array list containing the locations of the pegs */
private ArrayList createPegList() {
ArrayList pegs = new ArrayList();
for (int i = 0; i < N_ACROSS; i++) {
pegs.add(new GPoint(i * PEG_SEP, 0));
}
for (int i = 0; i < N_DOWN; i++) {
pegs.add(new GPoint(N_ACROSS * PEG_SEP, i * PEG_SEP));
}
for (int i = N_ACROSS; i > 0; i--) {
pegs.add(new GPoint(i * PEG_SEP, N_DOWN * PEG_SEP));
}
for (int i = N_DOWN; i > 0; i--) {
pegs.add(new GPoint(0, i * PEG_SEP));
}
return pegs;
}
private static final int N_ACROSS = 50;
private static final int N_DOWN = 30;
private static final int PEG_SEP = 10;
private static final int DELTA = 67;
}

Answer 1

不完整，难整理

追问

代码是完整的了，我只是把引用删了 你可去Google 看一下 ，因为不能贴完全