fun readFileLineByLineUsingForEachLine(fileName: String) = File(fileName).forEachLine { println(it) } 2.2.useLines Calls a given block callback, giving it a sequence of all the lines in a file. Once the processing is complete, the file gets closed: ...
* @param text text to append to file. * @param charset character set to use. */ public fun File.appendText(text: String, charset: Charset = Charsets.UTF_8): Unit /** * Reads this file line by line using the specified [charset] and calls [action] for each line. * Default charset...
This the first part of the function, where we collect the files in the input directory, filter only the ones that are CSV files and read the contents of each file. Once we have the lines of each CSV files we separate the first line, that contains the header, from the ...
These dependencies are quite large, so depending on the quality of your internet connection you might face timeouts getting them. In this case, you can increase timeout by specifying the following command line parameters on the first run: ...
Kotlin Kernel for Jupyter notebooks comes with a set of integrated libraries, which you can import into your notebook by running the %use line magic before the library's name within a cell. When you import a library using the %use line magic, the following functionality is added to the no...
val w=Window.orderBy(mData("SellerId"))mData.withColumn("Mom",mData("Amount")/lag(mData("Amount"),1).over(w)-1) Scala跨行计算不必处理数组越界,这一点比Kotlin方便。但Scala的结构化数据对象不支持下标取记录,只能用lag函数整体移行,这对结构化数据不够方便。lag函数不能用于通用性强的...
如ContentResolver.openInputStream()访问当时的内容Uri因为android不会直接授予你的应用File访问基础文件（...
When using the command-line compiler, use the-Xexplicit-apicompiler option with eitherstrictorwarning: xxxxxxxxxx -Xexplicit-api={strict|warning} Kotlin/Native support for suspending functions and other improvementsCopy heading link In this preview, we’re finally adding support for Kotlin’s suspendi...
Spring Initializr is also integrated in IntelliJ IDEA Ultimate edition and allows you to create and import a new project without having to leave the IDE for the command-line or the web UI. To access the wizard, go to File | New | Project, and select Spring Initializr. ...
check depends on jvm assertion settings in the kotlin package; default: legacy -Xbuild-file=<path> Path to the .xml build file to compile -Xcompile-java Reuse javac analysis and compile Java source files -Xnormalize-constructor-calls={disable|enable} Normalize constructor calls (disable: don'...