tokenizer.java

JAVA网络编程等几个小程序

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

public class Tokenizer extends Applet implements TextListener
{
	TextArea text1,text2;
	public void init()
	{
		text1=new TextArea(6,15);
		text2=new TextArea(6,15);
		add(text1);
		add(text2);
		text2.setEditable(false);
		text1.addTextListener(this);
	}
	
	public void textValueChanged(TextEvent e)
	{
		if(e.getSource()==text1)
	  {	String s=text1.getText();
		StringTokenizer fx=new StringTokenizer(s," ,'\n'");
		int n=fx.countTokens();
		String a[]=new String[n];
		for(int i=0;i<=n-1;i++)
		{
			String temp=fx.nextToken();
			a[i]=temp;
		}
		for(int i=0;i<n-1;i++)
		{
			for(int j=i+1;j<=n-1;j++)
			{
				if(a[j].compareTo(a[i])<0)
				{
					String t=a[j];
					a[j]=a[i];
					a[i]=t;
				}
			}
		}
		text2.setText(null);
		for(int i=0;i<n;i++)
		{
			text2.append(a[i]+"\n");
		}
		
		}
   }
}