06-06-23

project-files/FileBrowser1.java

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+import javax.swing.JFrame;
+import javax.swing.JPanel;
+import javax.swing.JTextField;
+import javax.swing.JTextArea;
+import javax.swing.JButton;
+import javax.swing.JScrollPane;
+import javax.swing.JFileChooser;
+import javax.swing.JOptionPane;
+import java.awt.BorderLayout;
+import java.awt.FlowLayout;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.io.BufferedReader;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.io.IOException;
+
+public class FileBrowser1 extends JFrame implements ActionListener {
+
+	/**
+	 * 
+	 */
+	private static final long serialVersionUID = 1L;
+	private JTextField filePathField;
+	private JTextArea fileContentArea;
+	private JButton browseButton;
+	private JButton readButton;
+	private JButton saveButton;
+	private String filePath;
+
+	public FileBrowser1() {
+		setTitle("File Browser");
+		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+		setSize(500, 400);
+		setLocationRelativeTo(null);
+		//create components
+		filePathField = new JTextField();
+		fileContentArea = new JTextArea();
+		browseButton = new JButton("Browse");
+		readButton = new JButton("Read");
+		saveButton = new JButton("Save");
+		saveButton.setEnabled(false); //initially disabled
+		//set layouts
+		setLayout(new BorderLayout());
+		JPanel topPanel = new JPanel(new BorderLayout());
+		JPanel buttonPanel = new JPanel(new FlowLayout());
+		//add components to panels
+		topPanel.add(filePathField, BorderLayout.CENTER);
+		buttonPanel.add(browseButton);
+		buttonPanel.add(readButton);
+		buttonPanel.add(saveButton);
+		//add panels to main frame
+		add(topPanel, BorderLayout.NORTH);
+		add(new JScrollPane(fileContentArea), BorderLayout.CENTER);
+		add(buttonPanel, BorderLayout.SOUTH);
+		//add action listeners
+		browseButton.addActionListener(this);
+		readButton.addActionListener(this);
+		saveButton.addActionListener(this);
+
+		setVisible(true);
+	}
+public void actionPerformed(ActionEvent e) {
+	if (e.getSource() == browseButton) {
+		JFileChooser fileChooser = new JFileChooser();
+		int result = fileChooser.showOpenDialog(this);
+		if (result == JFileChooser.APPROVE_OPTION) {
+			filePath = fileChooser.getSelectedFile().getAbsolutePath();
+			filePathField.setText(filePath);
+			saveButton.setEnabled(true); //enable the save button
+		}
+	} else if (e.getSource() == readButton) {
+		try {
+			String fileContent = readFileContent(filePath);
+			fileContentArea.setText(fileContent);
+		} catch (IOException ex) {
+			JOptionPane.showMessageDialog(this, "Error reading file: " + ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
+		}
+	} else if (e.getSource() == saveButton) {
+		try {
+			String content = fileContentArea.getText();
+			saveFileContent(filePath, content);
+			JOptionPane.showMessageDialog(this, "File Saved Successfully!!", "Success", JOptionPane.INFORMATION_MESSAGE);
+		} catch (IOException ex) {
+			JOptionPane.showMessageDialog(this, "Error saving file: " + ex.getMessage(), "Error", JOptionPane.ERROR_MESSAGE);
+		}
+	}
+}
+
+	private String readFileContent(String filePath) throws IOException {
+		StringBuilder content = new StringBuilder();
+		try (BufferedReader reader = new BufferedReader(new FileReader(filePath))) {
+			String line;
+			while ((line = reader.readLine()) != null) {
+				content.append(line).append("\n");
+			}
+		}
+		return content.toString();
+	}
+
+	private void saveFileContent(String filePath, String content) throws IOException {
+		try (FileWriter writer = new FileWriter(filePath)) {
+			writer.write(content);
+		}
+	}
+
+	public static void main(String[] args) {
+		new FileBrowser1();
+	}
+}