32.11 (Baby names) Create the following table:
create table Babyname (
year integer,
name varchar(50),
gender char(1),
count integer,
constraint pk
Babyname primary key (year, name, gender)
);
The baby name ranking data was described in Programming Exercise 12.31. Write a program to read data from the following URL and store into the Babyname table.
http://www.cs.armstrong.edu/liang/data/babynamesranking2001.txt ,
...
http://www.cs.armstrong.edu/liang/data/babynamesranking2010.txt .
create table Babyname (
year integer,
name varchar(50),
gender char(1),
count integer,
constraint pk
Babyname primary key (year, name, gender)
);
The baby name ranking data was described in Programming Exercise 12.31. Write a program to read data from the following URL and store into the Babyname table.
http://www.cs.armstrong.edu/liang/data/babynamesranking2001.txt ,
...
http://www.cs.armstrong.edu/liang/data/babynamesranking2010.txt .
import java.io.*; import java.net.URL; import java.util.HashMap; import java.util.Scanner; import java.io.BufferedInputStream; import java.io.IOException; import java.net.MalformedURLException; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.SQLException; public class Exercise11 { HashMap<String, Integer>[][] babyNamesMapArray; public static void main(String[] args) throws MalformedURLException, IOException, ClassNotFoundException, SQLException { Exercise11 exercise11= new Exercise11(); exercise11.loadFiles(); } private void loadFiles() throws MalformedURLException, IOException, ClassNotFoundException, SQLException { Class.forName("com.mysql.jdbc.Driver"); Connection connection = DriverManager.getConnection("jdbc:mysql://localhost/javabook", "root", "root"); String queryString = "insert into Babyname (year, name, gender, count) values (?, ?, ?, ?);"; // Get the baby name file from cs.armstrong website String baseURL = "http://www.cs.armstrong.edu/liang/data/babynamesranking"; String[] urls = new String[10]; String[] years = new String[urls.length]; for (int i = 0; i < urls.length; i++) { years[i] = (2001 + i) + ""; // create the years array urls[i] = baseURL + years[i] +".txt"; try { URL url = new URL(urls[i]); Scanner in = new Scanner(url.openStream()); int gender = 0; Integer rank = 0; while (in.hasNext()) { if (gender == 0) rank = in.nextInt(); String name = in.next(); String popularity = in.next(); // trash for now String sex; if(gender==1) { sex="F"; }else { sex="M"; } PreparedStatement preparedStatement = connection.prepareStatement(queryString); preparedStatement.setString(1, years[i]); preparedStatement.setString(2, name); preparedStatement.setString(3, sex); preparedStatement.setString(4, String.valueOf(rank)); preparedStatement.executeUpdate(); System.out.println(years[i]+"\t"+name+"\t"+sex+"\t"+rank); if (gender == 1) gender = 0; else gender++; } } catch (IOException e) { e.printStackTrace(); } } } }
No comments :
Post a Comment