誰能告诉我怎么实现把整型转化为byte存储起来？

Question

如题

Answer 1

程序如下：public class TEst
{
    public static void main(String[] args)
    {
        int t;
        t=456595487;
        System.out.println(t+":"+byteToInt(intToByte(t)));
        t=456595436;
        System.out.println(t+":"+byteToInt(intToByte(t)));
        t=Integer.MAX_VALUE;
        System.out.println(t+":"+byteToInt(intToByte(t)));
        t=Integer.MIN_VALUE;
        System.out.println(t+":"+byteToInt(intToByte(t)));
        t=48;
        System.out.println(t+":"+byteToInt(intToByte(t)));
    }    public static int byteToInt(byte[] b) //byteToInt
    {
        int t2=0;
        for(int i=3;i>=0;i--)
        {
            t2=t2<<8;
            t2 = b[i] < 0 ? t2 + b[i] + 256 : t2 + b[i];
        }
        return t2;
    }
    
    public static byte[] intToByte(int t1) //intToByte
    {
        byte[] b=new byte[4];
        for(int i=0;i<4;i++)
        {
            b[i] = (byte) t1;
            t1=t1>>8;
        }
        return b;
    }
}结果如下：456595487:456595487
456595436:456595436
2147483647:2147483647
-2147483648:-2147483648
48:48

Answer 2

int==>bytes
字节数组 = String.valueOf(i).getBytes();
bytes==>int
Integer.parseInt((new String(bytes[])));

Answer 3

bytes====>int
直接用
Byte.intValue()估计就可以