class Demo {
    public static void main (String args[]) {

        byte d = 127; // 8-bit is equal to 0 111 1111

int e = d << 2; /* 32-bit shifted value is equal to 0 000 0000 0000 0000 0000 0001 1111 1100
    0 * 2^0 + 0 * 2^1 + 1 * 2^2 + 1 * 2^3 + 1 * 2^4 + 1 * 2^5 + 1 * 2^6 + 1 * 2^7 + 1 * 2^8 =
    0 * 1   + 0 * 2   + 1 * 4   + 1 * 8   + 1 * 16  + 1 * 32  + 1 * 64  + 1 * 128 + 1 * 256 =
    0       + 0       + 4       + 8       + 16      + 32      + 64      + 128     + 256     = 508
*/

byte f = (byte)(e); /* [] indicates 8-bit at 32-bit shifted value: 0 000 0000 0000 0000 0000 0001 [1111 1100]
    0 * 2^0 + 0 * 2^1 + 1 * 2^2 + 1 * 2^3 + 1 * 2^4 + 1 * 2^5 + 1 * 2^6 - 1 * 2^7 =
    0 * 1   + 0 * 2   + 1 * 4   + 1 * 8   + 1 * 16  + 1 * 32  + 1 * 64  - 1 * 128 =
    0       + 0       + 4       + 8       + 16      + 32      + 64      - 128     = -4
*/

int g = (byte)(e);

    }
}

byte a = 10;
System.out.println(Integer.toBinaryString(a));
int b = 10;
System.out.println(Integer.toBinaryString(b));

byte c = 5 << 1;
System.out.println(Integer.toBinaryString(c));