Hi , I need help from java programmer to translate this code?

Question

I have basic java in my head.. yet I am struggling to understand this coding.
try{
FileInputStream FIS= new FileInputStream(args[0]); // what is this ?
int data = FIS.read;
while(data != 1) {
system.out.write(data); // what is .write and .read in this code.
data = FIS.read(); /* was this line just repeat intentionally */

} // How to know what does this code do?

Answer 1

FileInputStream FIS= new FileInputStream(args[0])
it create some kind of reader to a file with name that specified in argument (args[0]). so this'll provide you an object to read a specified file.
system.out.write(data) will output the data that the object read from 'FIS.read()' to console, so you can see what you try to read,
data=FIS.read()' this is intentional, the read() function read the file byte by byte that's why its inside a loop

Answer 2

Taste thanks for the last one