纯函数(虽然很没技术含量)
class Solution {
public int reverse(int x) {
try {
if (x < 0) {
return -Integer.parseInt(new StringBuffer("" + Math.abs(x)).reverse().toString());
}
return Integer.parseInt(new StringBuffer("" + Math.abs(x)).reverse().toString());
} catch (NumberFormatException e) {
return 0;
}
}
}
