How to use java file chooser in Jframe?

public void actionPerformed(ActionEvent e) {

		if(e.getSource()==close){
			this.dispose();
		}
		
		if(e.getSource()==open){
			
			JFileChooser choose=new JFileChooser();  //create a new JFileChooser instance
		
			int option=choose.showOpenDialog(this);
			if(option==JFileChooser.APPROVE_OPTION){  // ok button in dialog chose frame
				
				this.textArea.setText(" ");
				try {
					
					Scanner scan=new Scanner(new FileReader(choose.getSelectedFile().getPath()));  
				
   //you need a scanner to read lines in your text file, a stream FileReader to read the text file
					while(scan.hasNext()){
						textArea.append(scan.nextLine()+"\n");
					}
					
				} catch (FileNotFoundException e1) {
					e1.printStackTrace();
				}
				
			}
			
		}// open getSource()
		
		if(e.getSource()==save){
			
			JFileChooser save=new JFileChooser();
			int option=save.showSaveDialog(this);
			
			if(option==JFileChooser.APPROVE_OPTION){
				
				try {
					BufferedWriter bw=new BufferedWriter(new FileWriter(save.getSelectedFile().getPath()));  //a bufferedwriter( a high level stream writer )
					bw.write(textArea.getText());
					bw.close();
					
				} catch (IOException e1) {
					e1.printStackTrace();
				}
			}
			
		}
		
	}