隨機輸入一個數,判斷它是不是對稱數(迴文數)(如3,121,12321,45254)。不能用字符串庫函數
public boolean symmetry(long n){
int i,temp;
i = n;
temp = 0;
while(i){
temp = temp *10 +i%10;
i/=10;
}
return (temp == n);
}