kotlin-stdlib / kotlin.text / java.lang.StringBuilder / appendLine appendLine JVM 1.4 fun StringBuilder . appendLine ( value : StringBuffer ? ) : StringBuilder (source) fun StringBuilder . appendLine ( value : StringBuilder ? ) : StringBuilder (source) fun StringBuilder . appendLine ( value : Int ) : StringBuilder (source) fun StringBuilder . appendLine ( value : Short ) : StringBuilder (source) fun StringBuilder . appendLine ( value : Byte ) : StringBuilder (source) fun StringBuilder . appendLine ( value : Long ) : StringBuilder (source) fun StringBuilder . appendLine ( value : Float ) : StringBuilder (source) fun StringBuilder . appendLine ( value : Double ) : StringBuilder (source) Appends value to this StringBuilder , followed by a line feed character ( \n ).