englishstatistics.java

一个英文统计的Java程序。

import java.awt.*;
import java.applet.*;
import java.awt.event.*;

public class EnglishStatistics extends Applet implements ActionListener
{
	TextArea text;
	Label lc, lw, ls;
	int cn=0,wn=0, sn=0;
	Button btn;
	public void init()
	{
		lc = new Label("                ");
		lw = new Label("                ");
		ls = new Label("                ");
		text = new TextArea(10,20);
		btn = new Button("英文统计");
		add(text);
		add(btn);
		add(lc);
		add(lw);
		add(ls);
		btn.addActionListener(this);
	}
	public void actionPerformed(ActionEvent e)
	{
		String s = text.getText();
		int n = s.length();
		cn = 0;
		wn = 0;
		sn = 0;
		int i = 0;
		char c;
		boolean bS = false, bW = false;
		while(i < n)
		{
			c = s.charAt(i);
			if( c!= '?' && c != '!' && c!= '.' && c!= ' ')
			{
				cn ++;
				if(!bW)
					bW = true;
				if(!bS)
					bS = true;
			}
			else 
			{
				if( c== '?' || c == '!' || c == '.')
				{
					if(bS)
					{
						bS = false;
						sn++;
					}
				}
				if(bW)
				{
					bW = false;
					wn ++;
				}
			}
			i++;
		}
		lc.setText("字符数"+cn);
		lw.setText("字数"+wn);
		ls.setText("句子数"+sn);
	}
}