this is error while compiling
--E:\java mysql code driver>javac MySQLConnectExample.java MySQLConnectExample.java:16: error: unreported exception ClassNotFoundException; must be caught or declared to be thrown Class.forName("com.mysql.jdbc.Driver"); ^ 1 error –
--- Update ---
import java.sql.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class MySQLConnectExample {
static
{
try
{
// loads com.mysql.jdbc.Driver into memory
Class.forName("com.mysql.jdbc.Driver");
}
catch (ClassNotFoundException cnf)
{
System.out.println("Driver could not be loaded: " + cnf);
}
}
public static void main(String[] args) {
// creates three different Connection objects
Connection conn1 = null;
Connection conn2 = null;
Connection conn3 = null;
try {
AS IT IS ABOVE
DONE IT
--- Update ---
import java.sql.*;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.util.Properties;
public class MySQLConnectExample {
static
{
try
{
// loads com.mysql.jdbc.Driver into memory
Class.forName("com.mysql.jdbc.Driver");
}
catch (ClassNotFoundException cnf)
{
System.out.println("Driver could not be loaded: " + cnf);
}
}
public static void main(String[] args) {
// creates three different Connection objects
Connection conn1 = null;
Connection conn2 = null;
Connection conn3 = null;
try {
Class.forName("com.mysql.jdbc.Driver");
// connect way #1
String url1 = "jdbc:mysql://localhost:3306/aavikme";
String user = "root";
String password = "aa";
conn1 = DriverManager.getConnection(url1, user, password);
if (conn1 != null) {
System.out.println("Connected to the database test1");
}
// connect way #2
String url2 = "jdbc:mysql://localhost:3306/aavikme?user=root&password=aa";
conn2 = DriverManager.getConnection(url2);
if (conn2 != null) {
System.out.println("Connected to the database test2");
}
// connect way #3
String url3 = "jdbc:mysql://localhost:3306/aavikme";
Properties info = new Properties();
info.put("user", "root");
info.put("password", "aa");
conn3 = DriverManager.getConnection(url3, info);
if (conn3 != null) {
System.out.println("Connected to the database test3");
}
} catch (SQLException ex) {
System.out.println("An error occurred. Maybe user/password is invalid");
ex.printStackTrace();
} catch (ClassNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
DONE IT
run as
E:\java mysql code driver>javac MySQLConnectExample .java
E:\java mysql code driver>java -cp . MySQLConnectExample