Doubt on how to use Shift in Java

Question

Well, I have a question about how to use Shift Left in java. I have a String representing a hexadecimal value. Only I need to pass this value to binary. For this I use an integer variable to turn this string into a decimal number:

int primeiroOperando = Integer.parseInt(addR2, 16);

And to turn it into binary, I use toBinaryString:

String addR1 = Integer.toBinaryString(primeiroOperando);

But, since I need to do Shift, because I have to take the least significant bits, I can’t use this String because I have to use an integer for this. How can I do this binary conversion to save to an entire variable and so be able to do Shift?

Answer 1

Binary is just a representation. You can use shift with decimal, hexadecimal, etc, as shown in the example below:

    int i = 7;
    int x = i >> 1;
    int y = i << 2;
    System.out.println(String.format("i=%d, x=%d, y=%d", i, x, y)); // i=7, x=3, y=28