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class Animal{}
class Fish extends Aniaml{}
 super.(¸¸ÀàÖÐÓë×ÓÀàÏàͬµÄ·½·¨£©();//super-ÌØÊâµÄ±äÁ¿£¬ÓÃÓÚ·ÃÎʸ¸ÀàÖÐÓë×ÓÀàÏàͬµÄ·½·¨£¬ÈçÏÂ
//¸¸Àà
class Fish extends animal
{
 void output()
 {
  System.out.println("Fish");
 }
}
//×ÓÀà
class SmallFish extends Fish
{
 void output()
 {
  super.output();
  System.out.println("SmallFish");
 }

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final double PI = 12.4;(¿ÉÒÔÔÚ¹¹Ô캯ÊýÀﶨÒ壬µ«²»ÄܸıäÆäÖµ)
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 import lotus.domino.*;
import java.io.*;
import java.util.Vector;
import jxl.*;
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import java.util.LinkedList;
public class ProducerConsumer
{
 /**
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 public static void main(String[] args)
 {
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javaÎļþ·ÃÎÊFileÀ༰Æä¹ýÂË

import java.io.*;
class FileTest
{
 public static void main(String[] args) throws Exception
 {
  //File f=new File("1.txt");
  //f.createNewFile();
  //f.mkdir();
  //File f=new File("E:\\JavaLesson\\Lesson7\\1.txt");//ÔÚWindowsϵͳÏÂ,Óþø¶Ô ......
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