(Java) Specify number of bits (length) when converting binary number to string?

Question

I\'m trying to store a number as a binary string in an array but I need to specify how many bits to store it as.

For example, if I need to store 0 with two bits I ne

Answer 1

Use Integer.toBinaryString() then check the string length and prepend it with as many zeros as you need to make your desired length.