Reverse Bits

For example, given input 43261596 (represented in binary as 00000010100101000001111010011100), return 964176192 (represented in binary as
00111001011110000010100101000000).

题目解析：将一个数字的2进制反转然后输出

解法解析：位运算的考察，将输入数字n&1取到其最右边位，，输出result向左移位通过异或接受新的字符，整个过程比较简单，上AC代码

public int reverseBits(int n) {
int result = 0;
for (int i = 0; i < 32; i++) {
result = (result << 1) | (n & 1);
n = n >> 1;
}
return result;
}