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https://github.com/pratikmane0112/jdbc-crud
Create Read Update & Delete with java, swing & jdbc.
https://github.com/pratikmane0112/jdbc-crud
Last synced: 21 days ago
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Create Read Update & Delete with java, swing & jdbc.
- Host: GitHub
- URL: https://github.com/pratikmane0112/jdbc-crud
- Owner: PratikMane0112
- Created: 2024-04-17T10:56:51.000Z (9 months ago)
- Default Branch: master
- Last Pushed: 2024-04-21T19:08:52.000Z (9 months ago)
- Last Synced: 2024-11-07T13:16:05.859Z (2 months ago)
- Language: Java
- Size: 508 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
This project is a Java application for managing participants in a coding competition. It provides functionality to add, fetch, update, and delete participants from a database.
## Features
- Add new participants to the competition.
- Fetch all participants currently registered.
- Update participant information.
- Delete participants from the competition.
- Clean and intuitive user interface.
## Technologies Used
- Java
- MySQL
- JDBC
- Swing (for GUI)
## How to Use
1. Clone the repository to your local machine.
2. Set up a MySQL database using the provided SQL schema.
3. Configure the database connection details in the `Configuration.java` file.
4. Compile and run the `MainGUI.java` file to launch the application.
5. Use the buttons in the GUI to perform CRUD operations on participants.
## Database Schema
The database schema includes a table named `users` with the following columns:
- `id` (Primary Key)
- `username`
- `password`
- `fullname`
- `email`
## CRUD Operations
### Connect (Make connection with database)
```
try {
Class.forName("com.mysql.jdbc.Driver");
Connection con = DriverManager.getConnection(
"jdbc:mysql://localhost:3306/mydb", "username",
"password");
System.out.println("Connection established.");
}
catch (Exception e) {
e.printStackTrace();
}
```
### Create (Add Participant)
```
try {
String sql = "INSERT INTO table_name (column1, column2, column3) VALUES (?, ?, ?)";
PreparedStatement statement = con.prepareStatement(sql);
statement.setString(1, "value1");
statement.setString(2, "value2");
statement.setInt(3, 123);
statement.executeUpdate();
System.out.println("Record created.");
} catch (SQLException e) {
e.printStackTrace();
}
```
### Read (Fecth All Participant)
```
try {
String sql = "SELECT column1, column2, column3 FROM table_name WHERE id = ?";
PreparedStatement statement = con.prepareStatement(sql);
statement.setInt(1, 1);
ResultSet result = statement.executeQuery();
if (result.next()) {
String column1 = result.getString("column1");
String column2 = result.getString("column2");
int column3 = result.getInt("column3");
System.out.println("Column 1: " + column1);
System.out.println("Column 2: " + column2);
System.out.println("Column 3: " + column3);
}
} catch (SQLException e) {
e.printStackTrace();
}
```
### Update (Update Participant)
```
try {
String sql = "UPDATE table_name SET column1 = ?, column2 = ?, column3 = ? WHERE id = ?";
PreparedStatement statement = con.prepareStatement(sql);
statement.setString(1, "new_value1");
statement.setString(2, "new_value2");
statement.setInt(3, 456);
statement.setInt(4, 1);
statement.executeUpdate();
System.out.println("Record updated.");
} catch (SQLException e) {
e.printStackTrace();
}
```
### Delete (Delete Participant)
```
try {
String sql = "DELETE FROM table_name WHERE id = ?";
PreparedStatement statement = con.prepareStatement(sql);
statement.setInt(1, 1);
statement.executeUpdate();
System.out.println("Record deleted.");
} catch (SQLException e) {
e.printStackTrace();
}
```