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can someone explain can solve this problem in kotlin? Thank you very much

var weight = rweight.text.toString().toFloat() var hct = rhct.text.toString().toFloat() var EBV :Float var ABL :Float if (rman.isChecked){ EBV = weight * 75 } else if (rwoman.isChecked) { EBV = weight * 65 } ABL = EBV * (10)/hct //error in here "EBV must be initialize"
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  • try initializing it to something like var EBV: Float = 0.0? I think both your if and else if are not true so EBV is null in that line. Commented Jul 27, 2020 at 6:10
  • @PhaniRithvij yes, thank you very much for the answer. The problem is in my code. Commented Jul 27, 2020 at 8:03

1 Answer 1

Reset to default
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You receive that error because EBV may not be initialized when it is used.

You should initialize EBV variable with default value:

var EBV: Float = 0.0f // or some other default value

Or add else clause to the condition:

EBV = if (rman.isChecked) { weight * 75 } else if (rwoman.isChecked) { weight * 65 } else { 0.0f // assign some value to the variable } // As improvement you can replace `if` with `when` statement: EBV = when { rman.isChecked -> weight * 75 rwoman.isChecked -> weight * 65 else -> 0.0f // assign some value to the variable }
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Thanks a lot. The second method that uses "when" is work for me.

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