How can I convert a string from hh:mm:ss to hours in double? string “00:20:00” expected result 0.3...

# android

[Milo]

How can I convert a string from hhmmss to hours in double?

string
“002000”

expected result
0.333333333333333

string
“010000"

expected result
1

[Milo]

It’s Kotlin

[Francesc]

val result = "01:02:03".split(":").let {
        val hours = it[0]
        val minutes = it[1]
        val seconds = it[2]
        hours.toFloat() + minutes.toFloat() / 60f + seconds.toFloat() / 3600f
    }

[Milo]

and viceversa maybe @Francesc btw you know how to go from double to string with this format “hhmmss”

[Francesc]

that's easier, hours.toString().padStart(2, '0') + ":" + minutes.toString().padStart(2, '0') + ":" + seconds.toString().padStart(2, '0')

[Francesc]

that's for integers, just round your double to an integer

[Francesc]

that leaves the part from double to 3 sections

[Milo]

for example if I have the value 1 I would like to convert it to the string “010000”.
for example if I have the value 0.333333333333333 I would like to convert it to the string “002000".

[Francesc]

I'll help you out on this one, but you need to bang your head and solve these on your own

val value = 2.3416667
    val hours = value.toInt()
    val minutes = ((value - hours) * 60.0).toInt()
    val seconds = ((value - hours - minutes / 60.0) * 3600.0).toInt()
    println(hours.toString().padStart(2, '0') + ":" + minutes.toString().padStart(2, '0') + ":" + seconds.toString().padStart(2, '0'))