First, good at discovering problems, all problems will string together to find solutions to solve the problem, steps. To question some deep thinking. No one to help you find your question, only you, to learn positive feedback. Have confidence.
Second, object-oriented, set, IO, generics
Three, I / O collection object
File: random location, data format: ID, name, gender, score, address
After reading the file data into objects User
User will be placed in the collection
Collection User, in accordance with the address, gender, group, and within each group the score also sorted.
- Such as: Beijing, male; Shanghai, woman
Or: random file location, store the data in the following format: ID, name, age; After reading into the database
Topic11 class {public
// read the data file
// parse data
// storage
public static void main (String [] args) {
}
//. 1, to read the file
public static List <String> readFile ( String path) {
new new File File = new new File (path);
Final the BufferedReader Reader the BufferedReader new new = (File);
String Val = null;
the while (! (reader.readLine Val = ()) = null) {
}
}
}