import java.sql.*;
public class Transaction2 {
	public static void main(String[] args) {
		Statement stmt = null;
		Connection conn = null;
		try {
			Class.forName("");
			conn = DriverManager.getConnection("");
			conn.setAutoCommit(false);
			stmt = conn.createStatement();
			stmt.addBatch(sql);
			conn.setAutoCommit(true);
		} catch (ClassNotFoundException e) {
			e.printStackTrace();
		} catch (SQLException e) {
			try {
				if(conn != null) {
					conn.rollback();
					conn.setAutoCommit(true);
				}
			} catch (SQLException e1) {
					e.printStackTrace();
			} 
				
		} finally {
			try {
				if(stmt != null) {
					stmt = null;
					stmt.close();
				}
				if(conn != null) {
					conn = null;
					conn.close();
				}
			} catch (SQLException e) {
				e.printStackTrace();
			} 
		}
	}	
}