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How to convert a number to its binary representation in Kotlin

How to convert a number to its binary representation in Kotlin.

Here's a step-by-step tutorial on how to convert a number to its binary representation in Kotlin:

Step 1: Define the number to be converted​

First, you need to define the number that you want to convert to binary representation. You can do this by assigning a value to a variable. For example, let's say we want to convert the number 10 to binary:

val number = 10

Step 2: Create a function to convert the number to binary​

Next, you need to create a function that will convert the number to its binary representation. This function will take the number as input and return the binary representation as a string. Here's an example implementation:

fun toBinary(number: Int): String {
    var binary = ""
    var num = number

    while (num > 0) {
        binary = (num % 2).toString() + binary
        num /= 2
    }

    return binary
}

Let's break down the implementation:

  • We initialize an empty string binary to store the binary representation.
  • We use a while loop to divide the number by 2 until it becomes 0.
  • In each iteration, we calculate the remainder of the division using the modulus operator % and append it to the front of the binary string.
  • We update the value of num by dividing it by 2 using the division operator /.

Step 3: Call the function and print the result​

Finally, you can call the toBinary function with the number you want to convert and print the result. Here's an example:

val number = 10
val binary = toBinary(number)
println("Binary representation of $number is $binary")

This will output: Binary representation of 10 is 1010.

Additional Example: Let's convert the number 42 to binary using the same function:

val number = 42
val binary = toBinary(number)
println("Binary representation of $number is $binary")

This will output: Binary representation of 42 is 101010.

That's it! You now know how to convert a number to its binary representation in Kotlin.