0426_解決過去沒辦法多個空格使用傾聽者機制的問題
後面試著讓資料可以寫進資料庫並建出資料

package MyFrame;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.TextArea;
import java.awt.event.TextEvent;

//0831知道如何使用傾聽者及自動作加減，還有能自己創造出格子出來
class 實驗二 extends JFrame{
    // 此視窗所用到的元件
    int fieldWidth = 10;
    JPanel panel, inPanel, outPanel;
    JLabel inputFieldLabel, outputFieldLabel; 
    JTextField inputField, outputField,inputField2,outputField2;
    JButton inputButton,inputButton2;
    

    public 實驗二() {
        super("視窗事件範例");//為什麼子類別可以繼承這個範例?這範例從哪來的?
        initApp();
    }

    // 元件相關設置
    public void initApp() { 
        panel = new JPanel();
        panel.setLayout(new BoxLayout(panel, BoxLayout.Y_AXIS));
//BoxLayout是讓物件保持水平或垂直平行對齊的語法
        inPanel = new JPanel();
        outPanel = new JPanel();

        inputFieldLabel = new JLabel("輸入文字");
        
        inputField = new JTextField("輸入1");
        inputField.addActionListener(new inputFieldActionListener()); // 要將事件處理加入
        inputField2 = new JTextField("輸入2");
        inputField2.addActionListener(new inputFieldActionListener());
        
        inputButton = new JButton("確定");
        inputButton.addActionListener(new inputButtonActionListener()); // 要將事件處理加入
        inputButton2 = new JButton("確定");
        inputButton2.addActionListener(new inputButtonActionListener()); // 要將事件處理加入
        
        
        outputFieldLabel = new JLabel("輸出文字");
        outputField = new JTextField("輸出1");
        outputField2 = new JTextField("輸出2");
        
         panel.add(inputFieldLabel);
         panel.add(inputField);
         panel.add(inputField2);
         panel.add(outputFieldLabel);
        
        inPanel.add(inputButton);
      
        outPanel.add(outputFieldLabel);
        outPanel.add(outputField);
        outPanel.add(outputField2);
        panel.add(inPanel);
        panel.add(outPanel);
        
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        this.setSize(500, 500);
        this.getContentPane().add(panel);
        this.setVisible(true);
    }



    // inputField的事件處理

        private class inputFieldActionListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            changeOutputText();
        }
    }
        // inputButton的事件處理
    private class inputButtonActionListener implements ActionListener {
        public void actionPerformed(ActionEvent e) {
            changeOutputText();
        }
    }

 
    
        private class InputFieldStr2ActionListener implements ActionListener {
            public void actionPerformed(ActionEvent e){
                changeOutputText();
            }
        }
        
         private class inputButton2ActionListener implements ActionListener{
            public void actionPerformed(ActionEvent e) {
                changeOutputText();
            }
         }

    public void changeOutputText() {
        String input_field_str = inputField.getText();
        outputField.setText(input_field_str);
        
        String InputFieldStr2 = inputField2.getText();
        outputField2.setText(InputFieldStr2);
    }
    public static void main(String[] args) {
         實驗二 app = new  實驗二();
    }
}