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TextArea¿¡¼­ ¹®ÀÚ¿­À» ÀÔ·ÂÀ» ¹Þ¾Æ¼­ ¾ËÆĺªÀÇ °¹¼ö¸¸À» »Ì¾Æ³»¼­ A~z±îÁöÀÇ 7°³ÀÇ ±¸°£À» ³ª´©°í È÷½ºÅä±×·¥À» ±×¸®·Á°í ÇÕ´Ï´Ù. ±×·¯³ª ¿©±â¼­ ¿¡·¯°¡ ¶¸À¸´Ï È÷½ºÅä±×·¥Àº Á¢±Ùµµ ¸øÇß¾î¿ä.. charAt()ÇÔ¼ö¿Í ¹®ÀÚ¸¦ ¾Æ½ºÅ° ÄÚµå·Îº¯È¯ÇÏ·Á°í Çϴµ¥ Á¶±Ý¸¸ µµ¿ÍÁÖ½Ã¸é °¨»çÇÏ°Ú½À´Ï´Ù.
import java.awt.*;
import java.awt.color.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.text.*;
import java.util.*;


class AlphabetFrame extends JFrame {

public AlphabetFrame() { //Alphabet ÇÁ·¹ÀÓÀ» ¸¸µç´Ù.


JPanel p = new JPanel(); //p¿¡ »õ·Î¿î ÆгÎÀ» ÇÒ´ç


gaetsuButton = new JButton("¾ËÆĺª°¹¼ö"); //¾ËÆĺª°¹¼ö¶ó´Â À̸§ÀÇ ¹öÆ°À» »õ·Î ÇÒ´ç½ÃÅ´
p.add(gaetsuButton); //Æгο¡ ÀÌ ¹öÆ°À» ´õÇÔ
gaetsuButton.addActionListener(this); //


clearButton = new JButton("Áö¿ì±â");
p.add(clearButton);
clearButton.addActionListener(this);

getContentPane().add(p, "west");

textArea = new JTextArea(8, 40);
scrollPane = new JScrollPane(textArea);
getContentPane().add(scrollPane, "center");

setTitle("Alphabet & histogram");
setSize(400, 400);

addWindowListener(new WindowAdapter()
{
public void WindowClosing(WindowEvent e) {
System. exit(0); }
});
}
}
class deltype implements ActionListener {


public void actionPerformed(ActionEvent evt) {
int array[52];
int i;
int count=0;


ev.getText().charAt(0);
ev.getText().charAt(array.length);
String [] array = new String[100] ;
array[]=this.textArea;


if ((clearButton)evt.getSource().getActionCommand=="Áö¿ì±â" ) {
textArea.setText(""); }
else if((gaetsuButton)evt.getSource().getActionCommand=="¾ËÆĺª°¹¼ö") {


for(int i=0;i<array.length;i++)
{
if ('A'<=array[i] <='Z' ||'a'<=array[i] <='z') {
count++ ; }

}
}



}


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