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public void upperBound(List<? extends Date> list, Date date)   
{   
    Date now = list.get(0);   
    System.out.println("now==>" + now);   
    //list.add(date); //Õâ¾ä»°ÎÞ·¨±àÒë   
    list.add(null);//Õâ¾ä¿ÉÒÔ±àÒ룬ÒòΪnullûÓÐÀàÐÍÐÅÏ¢   
}  
public void upperBound(List<? extends Date> list, Date date)
{
Date now = list.get(0);
System.out.println("now==>" + now);
//list.add(date); //Õâ¾ä»°ÎÞ·¨±àÒë
list.add(null);//Õâ¾ä¿ÉÒÔ±àÒ룬ÒòΪnullûÓÐÀàÐÍÐÅÏ¢
}
Ϊʲô»áÎÞ·¨±àÒëÄØ£¬Êµ¼Êµ÷ÓÃʱ´«ÈëµÄlist¿ÉÄÜÊÇjava.util.DateµÄij¸ö×ÓÀàµÄ²ÎÊý»¯ÀàÐÍ£¬Èç:
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public void testUpperBound()   
{   
    List<Timestamp> list = new ArrayList<Timestamp>();   
    Date date = new Date();   
    upperBound(list,date);   
}  
public void testUpperBound()
{
List<Timestamp> list = new ArrayList<Timestamp>();
Date date = new Date();
upperBound(list,date);
}
Ò²¾ÍÊÇ˵£¬ÏÖÔÚupperBound·½·¨ÖÐʵ¼ÊµÄlistÊÇList<Timestamp>£¬ÏòËüÌí¼ÓÒ»¸öDateÀàÐÍ£¬¿Ï¶¨ÊDz»Ðеġ£Ïà·´£¬¶ÁÈ¡Êý¾Ýʱ£¬²»¹Üʵ¼ÊµÄlistÊÇʲôÀàÐÍ£¬µ«¿ÉÒÔÖªµÀËüÖÁÉٻ᷵»ØÒ»¸öDateÀàÐÍ£¬ËùÒÔÓÃforeach£¬getµÈûÓÐÎÊÌâ¡£
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public <T extends Date> void upperBound2(List<T> list, T date)   
{   
    list.add(date);   
}  
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Java source code for calculating E


The Mean Opinion
Score (MOS) test is a well acccepted standard which is defined in the ITU-T
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test is generated by letting large number of listeners to evaluate the quality
of the test sentences. 
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JavaÖеÄ×Ö·û¼¯±àÂëÈëÃÅ 2

 
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public class HelloWorld {
   public static void main(String[] args){
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javaËæ»úÈ¡listÖв»Öظ´µÄÔªËØ

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.huadoo.model.Area;
public class Aaaa {
 /**
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 public static void main(String[] args) {
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JavaÖÐÇó100µÄ½×³Ë

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public class Test {
public static void main(String[] args) {
int result = 1;
for (int i = 1; i <= 100; i++) {
result *= i;
}
System.out.println(result);
}
}
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