NightCare Project

A Child Care Center management system, developed by Java, Java Swing and NetBeans RCP platform.

Applied typical Object-Oriented Programming design concepts and full stack approach.

General Structure

The project was made by 3 parts:

• Java Swing front end
• Back end logic
• Database

I used CSV for data storage to simplify the process

Java Swing Front End Design

UI components:

• jPanel
• jTextfield
• jButton
• jTable
• jLabel
• etc.

Add data to jTable and basic settings of jFrame

DataHandler dataHandler = new DataHandler();
        dataHandler.loadData();
        children = dataHandler.children;
        for (Child c : children) {
            t.addRow(c.getInfo());
        }
        
        JTableHeader jtb = studentsTable.getTableHeader();
        jtb.setFont(new Font("Helvetica", Font.BOLD, 20));
        this.setResizable(false);
        this.setVisible(true);

Load the selected data to side bars for edit or delete by adding click listener to jTable

private void studentsTableMouseClicked(java.awt.event.MouseEvent evt) {                                           
        // TODO add your handling code here:
        int i = studentsTable.getSelectedRow();
        selectedRowIndex = i;
        TableModel selectedModel = studentsTable.getModel();
        selectedTableModel = selectedModel;
        studentIdTextField.setText(selectedModel.getValueAt(i,0).toString());
        nameTextField.setText(selectedModel.getValueAt(i,1).toString());
        ageTextField.setText(selectedModel.getValueAt(i,2).toString());
    } 

Button click perform function

private void saveButtonActionPerformed(java.awt.event.ActionEvent evt) {                                           
        // TODO add your handling code here:
        selectedTableModel.setValueAt(studentIdTextField.getText(),selectedRowIndex,0);
        selectedTableModel.setValueAt(nameTextField.getText(),selectedRowIndex,1);
        selectedTableModel.setValueAt(ageTextField.getText(),selectedRowIndex,2);
        
        studentIdTextField.setText("");
        ageTextField.setText("");
        nameTextField.setText("");
        classTextField.setText("");
        
    }  

Back End Logic

Object Oriented Programming Structure

Object Oriented Design Concepts:

• Abstraction
• Encapsulation
• Inheritance
• Polymorphism

File I/O

@Override
    public List<Student> getDataFromCSV() {
        List<Student> students = null;
        try {
            students = FileUtil.readFile(Student.class, "StudentData.csv");
        } catch (Exception e) {
            e.printStackTrace();
        }
        return students;
    }

Singleton Factory Design Pattern

public class StudentDataFactory extends AbstractDataFactory {
    private static StudentDataFactory factoryInstance = null;
    private static StudentDataHandler studentDataHandler = null;

    private StudentDataFactory() {

    }

    public static AbstractDataFactory getFactoryInstance() {
        if (factoryInstance == null) {
            factoryInstance = new StudentDataFactory();
        }
        return factoryInstance;
    }

    @Override
    public DataHandler getObject() {
        if (studentDataHandler == null)
            studentDataHandler = new StudentDataHandler();
        return studentDataHandler;
    }
}