java - How to change a file reader to a directory scanner? -

answer

system.out.print("enter name of directory:"); file a= new file((new bufferedreader(new  inputstreamreader(system.in))) .readline());  file[] b=a.listfiles();  for(int i=1;i < b.length;i++){ fn=b[i].getpath(); } 

problem

system.out.print("enter name of file: "); fn = (new bufferedreader(new inputstreamreader(system.in)))         .readline(); 

i have tried

file[] file array=new file(system.in).listfiles(); for(file f: filearray) // loop through files {    if(f.getname().endswith(".fasta")){      fn = (new bufferedreader(new inputstreamreader(filearray)).readline()); // read files }}` 

but receive error of constructor file(inputstream) undefined

i want change fn directory. how iterate through directory keeping buffered reader , inputstreamreader?

i can see want read content file...

the following classes used writing/reading data files. fileoutputstream,fileinputstream;

as can see, fileouputstream used in writing data file , fileinputstream used in reading data file.

the data can text,image,video, etc.

you can create instance of fileinputstream this

//replace string actual file name     file filetoreadfrom = new file("path/to/file"); fileinputstream = new fileinputstream(filetoreadfrom); 

and create instance of fileoutputstream this:

//replace string actual file name     file filetowriteto= new file("path/to/file"); fileinputstream = new fileinputstream(filetowriteto); 

with instances of these classes can read , write from/to file. can read more them here