How to convert a long to a fixed-length 16-bit binary string?

Question

Hi i want to convert a long integer to binary but the problem is i want a fixed 16 bit binary result after conversion like if i convert 2 to 16 bit binary it should give me

Answer 1

Integer.toBinaryString will convert an int to its binary representation as a string.

It does not give you leading zeroes, so if you really need the string to have those and be 16 bits, you can just add them yourself.

You should know how to do that.

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Do note that an int is actually 32 bits in Java. You should also know how two's complement works. The binary representation of -1, for example, is 32 1s.