/media/sda-magnetic/david/Extern-Magnetic-2022-06-29/Extern01/Dokumente-2021-05-8/disk10-ab-2020-01-10/02-debian-pc2-work/informatik/java-new/java8.txt

reader-Klasse
writer-Klasse
InputStream-Klasse
OutputStream-Klasse

lesen eines Zeichens: int read();
schreiben eines Zeichens: void write (int)

InputStream: Dasselbe für Byte 
OutputStream: Dasselbe für Byte

FileWriter
BufferedWriter

FileInputStream 
InputStreamReader
BufferedReader

Es gibt

1. FileReader
2. FileWriter

1. BufferedReader
2. BufferedWriter 

1. OutputStreamWriter
2. OutPutStreamReader

1. FileInputStream
2. FileOutputStream