Hi,
for some reason, my JScrollPane isn't working with mt JTextArea.
Probably the most important part:
JTextArea TextArea;
JScrollPane scroll;
TextArea = new JTextArea();
scroll = new JScrollPane(TextArea);
add(TextArea,BorderLayout.CENTER);
add(scroll,BorderLayout.LINE_START);Whole code if you're interested in what I'm making:
import java.awt.BorderLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.Formatter;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
@SuppressWarnings("serial")
public class Main extends JFrame{
JPanel icons;
JTextArea TextArea;
JScrollPane scroll;
JMenuBar menuBar;
JMenu File;
JMenuItem New;
JMenuItem Load;
JMenuItem Save;
JMenuItem SaveAs;
JMenuItem Exit;
JMenu Window;
JMenu Help;
JFileChooser NF;
JFileChooser LF;
JFileChooser SF;
JFileChooser SFA;
File NewFile;
File LoadFile;
File SaveFile;
Formatter createNewFile;
String filepath;
@SuppressWarnings("unused")
public static void main(String[] args){
Main m = new Main();
}
public Main(){
super("LFC Text");
setSize(500,345);
setLocation(40,50);
setLayout(new BorderLayout());
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
menuBar = new JMenuBar();
setJMenuBar(menuBar);
menuBar.setBorderPainted(false);
icons = new JPanel();
add(icons,BorderLayout.PAGE_START);
TextArea = new JTextArea();
scroll = new JScrollPane(TextArea);
TextArea.setLineWrap(true);
add(TextArea,BorderLayout.CENTER);
add(scroll,BorderLayout.LINE_END);
File = new JMenu("File");
New = new JMenuItem("New File");
Load = new JMenuItem("Load File");
Save = new JMenuItem("Save File");
SaveAs = new JMenuItem("Save File As...");
Exit = new JMenuItem("Exit");
Window = new JMenu("Window");
Help = new JMenu("Help");
NF = new JFileChooser();
LF = new JFileChooser();
SF = new JFileChooser();
SFA = new JFileChooser();
menuBar.add(File);
File.add(New);
File.add(Load);
File.add(Save);
File.add(SaveAs);
File.addSeparator();
File.add(Exit);
menuBar.add(Window);
menuBar.add(Help);
setVisible(true);
class NewFileAction implements ActionListener{
public void actionPerformed(ActionEvent e){
try {
makeNewFile(NF);
} catch (FileNotFoundException e1) {
}
}
}class LoadFileAction implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
loadFile(LF);
}
}class SaveFileAction implements ActionListener{
public void actionPerformed(ActionEvent e){
saveFile(SF);
}
}class SaveFileAsAction implements ActionListener{
public void actionPerformed(ActionEvent arg0) {
saveFileAs(SFA);
}
}
New.addActionListener(new NewFileAction());
Load.addActionListener(new LoadFileAction());
Save.addActionListener(new SaveFileAction());
SaveAs.addActionListener(new SaveFileAsAction());
}
public void makeNewFile(JFileChooser fc) throws FileNotFoundException{
int returnVal = fc.showDialog(this,"Create a new file");
if(returnVal == JFileChooser.APPROVE_OPTION){
NewFile = fc.getSelectedFile();
try{
createNewFile = new Formatter(NewFile.getAbsolutePath());
}finally{
JOptionPane.showMessageDialog(this,NewFile.getName()+" successfully created.");
setTitle("LFC Text|"+NewFile.getName());
}
}
}
public void loadFile(JFileChooser fc){
int returnVal = fc.showOpenDialog(this);
if(returnVal == JFileChooser.APPROVE_OPTION){
LoadFile = fc.getSelectedFile();
try{
TextArea.setText("");
FileInputStream fstream = new FileInputStream(LoadFile.getAbsolutePath());
DataInputStream in = new DataInputStream(fstream);
BufferedReader br = new BufferedReader(new InputStreamReader(in));
String strline;
while((strline = br.readLine())!= null){
TextArea.setText(TextArea.getText()+strline+"\n");
}
TextArea.setText(TextArea.getText()+"\n\nLiverpool Football Club Is A Win");
} catch (FileNotFoundException e) {
JOptionPane.showMessageDialog(this,e.getStackTrace());
} catch (IOException e) {
JOptionPane.showMessageDialog(this,e.getStackTrace());
}finally{
JOptionPane.showMessageDialog(this,LoadFile.getName()+ " was successfully loaded");
setTitle("LFC Text|"+LoadFile.getName());
}
}
}
public void saveFile(JFileChooser fc){
if(filepath == null){
int returnVal = fc.showDialog(this,"Save File");
if(returnVal == JFileChooser.APPROVE_OPTION){
try{
File file = fc.getSelectedFile();
filepath = file.getAbsolutePath();
FileWriter fstream = new FileWriter(filepath);
BufferedWriter write = new BufferedWriter(fstream);
PrintWriter print = new PrintWriter(write);
print.println(TextArea.getText());
print.close();
write.close();
setTitle("LFC Text|"+ file.getAbsoluteFile());
}catch(IOException e1){JOptionPane.showMessageDialog(this,"Failed to save.\nError: "+
e1.getStackTrace());}
}
}else{
try{
FileWriter fstream = new FileWriter(filepath);
BufferedWriter write = new BufferedWriter(fstream);
PrintWriter print = new PrintWriter(write);
print.println(TextArea.getText());
print.close();
write.close();
setTitle("LFC Text|"+ filepath);
}catch(IOException e1){JOptionPane.showMessageDialog(this,"Failed to save.\nError: "+
e1.getStackTrace());}
}
}public void saveFileAs(JFileChooser fc){
filepath = null;
saveFile(fc);
}
}Thanks.
