Kotlin メモ : File.outputStream(), OutputStream.writer()

fun File.outputStream(): FileOutputStream
fun OutputStream.writer(charset: Charset = Charsets.UTF_8): OutputStreamWriter
fun File.writer(charset: Charset = Charsets.UTF_8): OutputStreamWriter

view plainprint?

1. val writer = OutputStreamWriter(FileOutputStream(file), charset)  
2. writer.write(...)  
3. writer.close()  

val writer = OutputStreamWriter(FileOutputStream(file), charset) writer.write(...) writer.close()

view plainprint?

1. file.outputStream()  
2.     .writer(charset)  
3.     .use {  
4.         it.write(...)  
5.     }  

file.outputStream() .writer(charset) .use { it.write(...) }

view plainprint?

1. file.writer(charset)  
2.     .use {  
3.         it.write(...)  
4.     }  

file.writer(charset) .use { it.write(...) }