Java Program That Draws A Spiral?

I'm trying to make a java program that draws a spiral like this: [URL] ....

It was use a draw method to draw it in a specific way. What I have in my code so far is:

for (int i=0; i<line.length; i++) {
line[i] = new int[4];
line[0].x = 0; line[0].y = 0;
line[1].x = 0; line[1].y = boxSize;
line[2].x = boxSize;line[2].y = boxSize;
line[3].x = boxSize;line[3].y = 0;

It would be made through a 2d array and the values for how big the lines are would be stored in another file called line_details.txt which contains these values 0 200 1 175. So how would I implement this stuff into a Java code?