byte[]轉換int[]

@Test
    public void data() {
        byte[] ba = {0,0,7,-48,0,0,4,87,0,0,8,-82};
        int[] cc=byteArrayToIntList(ba);
        for(int c:cc) {
            System.out.println(c);
        }
    }
    public static int[] byteArrayToIntList(byte[] b) {
        if(b.length%4!=0)
            return null;
        int [] a=new int[b.length/4];
        for(int i1=0,i2=1,i3=2,i4=3,i5=0;i4<b.length;i1+=4,i2+=4,i3+=4,i4+=4,i5++){
            byte[] ab=new byte[4];
            ab[0]=b[i1];
            ab[1]=b[i2];
            ab[2]=b[i3];
            ab[3]=b[i4];
            a[i5]=byteArrayToInt(ab);
        }
        return a;
    }
    public static int byteArrayToInt(byte[] b) {
        return b[3] & 0xFF |
                (b[2] & 0xFF) << 8 |
                (b[1] & 0xFF) << 16 |
                (b[0] & 0xFF) << 24;
    }