How do I print a double value without scientific notation using Java?

Question

I want to print a double value in Java without exponential form.

double dexp = 12345678;
System.out.println(\"dexp: \"+dexp);

It shows this

Answer 1

Java/Kotlin compiler converts any value greater than 9999999 (greater than or equal to 10 million) to scientific notation ie. Epsilion notation.

Ex: 12345678 is converted to 1.2345678E7

Use this code to avoid automatic conversion to scientific notation:

fun setTotalSalesValue(String total) {
        var valueWithoutEpsilon = total.toBigDecimal()
        /* Set the converted value to your android text view using setText() function */
        salesTextView.setText( valueWithoutEpsilon.toPlainString() )
    }

Answer 2

This may be a tangent.... but if you need to put a numerical value as an integer (that is too big to be an integer) into a serializer (JSON, etc.) then you probably want "BigInterger"

Example:

value is a string - 7515904334

We need to represent it as a numerical in a Json message:

{
    "contact_phone":"800220-3333",
    "servicer_id":7515904334,
    "servicer_name":"SOME CORPORATION"
}

We can't print it or we'll get this:

{
    "contact_phone":"800220-3333",
    "servicer_id":"7515904334",
    "servicer_name":"SOME CORPORATION"
}

Adding the value to the node like this produces the desired outcome:

BigInteger.valueOf(Long.parseLong(value, 10))

I'm not sure this is really on-topic, but since this question was my top hit when I searched for my solution, I thought I would share here for the benefit of others, lie me, who search poorly. :D