java – Bitwise op意外地变为负面

public static int ipv4ToInt(String address) {
    int result = 0;

    // iterate over each octet
    for(String part : address.split(Pattern.quote("."))) {

        // shift the previously parsed bits over by 1 byte
        result = result << 8;

        System.out.printf("shift = %dn",result);

        // set the low order bits to the current octet
        result |= Integer.parseInt(part);

        System.out.printf("result = %dn",result);
    }
    return result;
}

对于ipv4ToInt(“10.35.41.134”),我得到：

shift = 0
result = 10
shift = 2560
result = 2595
shift = 664320
result = 664361
shift = 170076416
result = 170076550
10.35.41.134 = 170076550

这与我自己进行数学计算时得到的结果相同.

对于ipv4ToInt(“192.168.0.1”),我得到：

shift = 0
result = 192
shift = 49152
result = 49320
shift = 12625920
result = 12625920
shift = -1062731776
result = -1062731775
192.168.0.1 = -1062731775

对于这个,当我手动进行数学运算时,我得到3232235521.

有趣的是：
3232235521 = 11000000101010000000000000000001
当我输入1062731775进入我的Windows calc并按下/ – 按钮时,我得到：
-1062731775 = 22222222222222222222222222222211 110000001010100000000000000000000001

该功能仍然适用于我的目的,但我真的很好奇,为什么当我做最后一点转换时为什么地球结果会变为负值？