Java code translation/ explanation

i have got some example code and wondering what is happening is simple terms since i am new to java

values = input.next().split(",", -1);
if(!values[0].equals("")) {
    book.setTitle(values[0]);
}
if(!values[1].equals("")) {
    book.setAuthor(values[1]);
}
if(!values[2].equals(""))  {
    book.setIsbn(values[2]);
}
if(!values[3].equals("")) {
    book.setCopies(Integer.parseInt(values[3].replace(" ", "")));
}