JAVA編程思想,第一章,對對象的概念,以及訪問權限的有了深入理解
public static UnicodeBlock of(int codePoint) {
if (!isValidCodePoint(codePoint)) {
throw new IllegalArgumentException();
}
int top, bottom, current;
bottom = 0;
top = blockStarts.length;
current = top/2;
// invariant: top > current >= bottom && codePoint >= unicodeBlockStarts[bottom]
while (top - bottom > 1) {
if (codePoint >= blockStarts[current]) {
bottom = current;
} else {
top = current;
}
current = (top + bottom) / 2;
}
return blocks[current];
}
return (thisBits == anotherBits ? 0 : // Values are equal
(thisBits < anotherBits ? -1 : // (-0.0, 0.0) or (!NaN, NaN)
1)); // (0.0, -0.0) or (NaN, !NaN)