public void puMap() {
for (
int y =
0; y <=
2 * r; y +=
2) {
long x = Math.round (r - Math.sqrt(
2 * r * y - y * y));
double longLength =
2 * (r - x);
for (
int i =
0; i <= x; i++) {
System.
out.print(
' ');
}
System.
out.print(
'*');
for (
int j =
0; j <= longLength; j++) {
System.
out.print(
' ');
}
System.
out.println(
'*');
}
}
其解释这段代码，是打印空心圆的，但是里面代码不是很懂，求解释和注释代码，谢谢大神们
