Is using file handling in GUI different from console?-CodePudding

I've been thinking about this for a while but I really can't figure out on how to make file handling work in GUI because as a beginner, I only used console up until now and GUI is pretty messy for me.

Can anyone explain it to me please?

CodePudding user response：

You only do error handling on your code side and you can use "try catch" or "if" statements

CodePudding user response：

This is an example of programming a GUI with AWT I pulled from here:

import java.awt.*;        // Using AWT container and component classes
import java.awt.event.*;  // Using AWT event classes and listener interfaces

// An AWT program inherits from the top-level container java.awt.Frame
public class AWTCounter extends Frame {
   private Label lblCount;    // Declare a Label component
   private TextField tfCount; // Declare a TextField component
   private Button btnCount;   // Declare a Button component
   private int count = 0;

   public AWTCounter () {
      setLayout(new FlowLayout());
      lblCount = new Label("Counter");  
      add(lblCount);                    

      tfCount = new TextField(count   "", 10); // TextField component with initial text
      tfCount.setEditable(false);       // read-only
      add(tfCount);                     // container (frame) adds TextField component

      btnCount = new Button("Count");   // Button component
      add(btnCount);                    // container (frame) adds Button component

      BtnCountListener listener = new BtnCountListener();
      btnCount.addActionListener(listener);
         // "btnCount" is the source object that fires an ActionEvent when clicked.

      setTitle("AWT Counter");  // container title
      setSize(300, 100);        // container initial window size
      setVisible(true);         // container shows
   }



   public static void main(String[] args) {
      // Invoke the constructor to setup the GUI
      AWTCounter app = new AWTCounter();
   }

   // class to handle the "Count" button-click
   private class BtnCountListener implements ActionListener {
      @Override
      public void actionPerformed(ActionEvent evt) {
           count;
         tfCount.setText(count   "");
         // or invoke file-handling here
      }
   }
}

Your file-handling just happens at another point in your code when working with a GUI: eg when clicking a button or when the GUI is initialized, but the backend working is the same.