Kotlin String Tutorials

In Kotlin, the String class represents character strings.

Access characters of a String

Index access operator can be used.

val str = "abCdEf"
str[2] //"C"

Iterate through a String

for (c in str) {
  println(c)
}

Add leading zeros to a number

Method padStart() of the CharSequence class can add any characters to the beginning of a string/char sequence.

val padWithZeros = "1".padStart(2, '0') 
//output: "01"