Добавление значений символов в java

Question

import java.awt.*; //Container, GridLayout, *, or etc... 
import javax.swing.*; //JFrame, JLabel, *, or etc... 
import java.awt.event.*; 
public class NumerologyEC extends JFrame 
{ 
    private static final int Width = 400; 
    private static final int Height = 200; 

    private JLabel wordJL, sumJL; 
    private JTextField wordTF, sumTF; 

    private JButton calculateJB, exitJB; 

    private CalculateButtonHandler cbHandler; 
    private ExitButtonHandler ebHandler; 

    public NumerologyEC() 
    { 
     setTitle ("Numerology Extra Credit"); 
     wordJL = new JLabel ("Enter a word: ", SwingConstants.RIGHT); 

     sumJL = new JLabel ("Sum of letters: ", SwingConstants.RIGHT); 

     wordTF = new JTextField(10); 

     sumTF = new JTextField(10); 

     calculateJB = new JButton ("Calculate"); 
     cbHandler = new CalculateButtonHandler(); 
     calculateJB.addActionListener (cbHandler); 

     exitJB = new JButton ("Exit"); 
     ebHandler = new ExitButtonHandler(); 
     exitJB.addActionListener (ebHandler); 

     Container pane = getContentPane(); 
     pane.setLayout (new GridLayout (3, 2)); 

     pane.add(wordJL); 
     pane.add(wordTF); 
     pane.add(calculateJB); 
     pane.add(exitJB); 
     pane.add(sumJL); 
     pane.add(sumTF); 


     setSize(Width, Height); 
     setVisible (true); 
     setDefaultCloseOperation (EXIT_ON_CLOSE); 
    } 

    private class CalculateButtonHandler implements ActionListener 
    { 
     public void actionPerformed (ActionEvent e) 
     { 
      double letterSum; 

      letterSum = sumCharValues; 


     } 
    } 

    private int sumCharValues (String input){ 
     String total = input.toLowerCase(); 
     int result = 0; 
     for (int i = 0, n = total.length(); i < n; i++) { 
      char c = total.charAt(i); 
      result += (c - 'a' + 1); 
     } 
     return result; 
    } 

    private class ExitButtonHandler implements ActionListener 
    { 
     public void actionPerformed (ActionEvent e) 
     { 
      System.exit (0); 
     } 
    } 

    public static void main (String[] args) 
    { 
    NumerologyEC rectObject = new NumerologyEC(); 
    } 


} 

Как реализовать функцию sumcharvalues ​​в «приватном классе CalculateButtonHandler реализует ActionListener?» im пытается добавить значение символов. просто новичок здесь, ребята. заблаговременно за помощь

Answer 1

Вы можете суммировать символы, выполнив приведение арифметики к int.
, например.

result += ((int) c) - ((int) 'a') + 1 

Это может быть чрезмерно расширенное, но оно должно работать.

Answer 2

Попробуйте это!

package fileoperations; 

import java.awt.*; //Container, GridLayout, *, or etc... 

import javax.swing.*; //JFrame, JLabel, *, or etc... 

import java.awt.event.*; 

public class NumerologyEC extends JFrame 
{ 
    private static final int Width = 400; 
    private static final int Height = 200; 

    private JLabel wordJL, sumJL; 
    private JTextField wordTF, sumTF; 

    private JButton calculateJB, exitJB; 

    private CalculateButtonHandler cbHandler; 
    private ExitButtonHandler ebHandler; 

    public NumerologyEC() 
    { 
     setTitle ("Numerology Extra Credit"); 
     wordJL = new JLabel ("Enter a word: ", SwingConstants.RIGHT); 

     sumJL = new JLabel ("Sum of letters: ", SwingConstants.RIGHT); 

     wordTF = new JTextField(10); 

     sumTF = new JTextField(10); 

     calculateJB = new JButton ("Calculate"); 
     cbHandler = new CalculateButtonHandler(); 
     calculateJB.addActionListener (cbHandler); 

     exitJB = new JButton ("Exit"); 
     ebHandler = new ExitButtonHandler(); 
     exitJB.addActionListener (ebHandler); 

     Container pane = getContentPane(); 
     pane.setLayout (new GridLayout (3, 2)); 

     pane.add(wordJL); 
     pane.add(wordTF); 
     pane.add(calculateJB); 
     pane.add(exitJB); 
     pane.add(sumJL); 
     pane.add(sumTF); 


     setSize(Width, Height); 
     setVisible (true); 
     setDefaultCloseOperation (EXIT_ON_CLOSE); 
    } 

    private class CalculateButtonHandler implements ActionListener 
    { 
     public void actionPerformed (ActionEvent e) 
     { 
      if(e.getSource().equals(calculateJB)) 
      { 


      double letterSum; 

      letterSum = sumCharValues(wordTF.getText()); 
      sumTF.setText(letterSum+""); 
      } 

     } 
    } 

    private int sumCharValues (String input){ 
     String total = input.toLowerCase(); 
     int result = 0; 
     for (int i = 0, n = total.length(); i < n; i++) { 
      char c = total.charAt(i); 
      result += (c - 'a' + 1); 
     } 
     return result; 
    } 

    private class ExitButtonHandler implements ActionListener 
    { 
     public void actionPerformed (ActionEvent e) 
     { 
      System.exit (0); 
     } 
    } 

    public static void main (String[] args) 
    { 
    NumerologyEC rectObject = new NumerologyEC(); 
    } 


}