brxonline
- 浏览: 61683 次
- 性别:
- 来自: 苏州
-
最新评论
-
brxonline：
提示不能这样写234390216 写道234390216 写道 ...
mysql导出数据为excel -
234390216：
234390216 写道不行啊，错误
提示不能这样写
mysql导出数据为excel -
234390216：
不行啊，错误
mysql导出数据为excel
文章列表
1、运行时异常与一般异常有何异同？
异常表示程序运行过程中可能出现的非正常状态，运行时异常表示虚拟机的通常操作中可能遇到的异常，是一种常见运行错误。java编译器要求方法必须声明抛出可能发生的非运行时异常，但是并不要求必须声明抛出未被捕获的运行时异常。
- 2008-06-08 13:58
- 浏览 706
- 评论(0)
1、String 和StringBuffer的区别
JAVA平台提供了两个类：String和StringBuffer，它们可以储存和操作字符串，即包含多个字符的字符数据。这个String类提供了数值不可改变的字符串。而这个StringBuffer类提供的字符串进行修改。当你知道字符数据要改变的时候你就可以使用StringBuffer。典型地，你可以使用StringBuffers来动态构造字符数据。
- 2008-06-08 13:55
- 浏览 697
- 评论(0)
1.int 和 Integer 有什么区别
Java 提供两种不同的类型：引用类型和原始类型（或内置类型）。Int是java的原始数据类型，Integer是java为int提供的封装类。Java为每个原始类型提供了封装类。
原始类型封装类
booleanBoolean
charCharacter
byteByte
shortShort
intInteger
longLong
floatFloat
doubleDouble
引用类型和原始类型的行为完全不同，并且它们具有不同的语义。引用类型和原始类型具有不同的特征和用法，它们包括：大小和速度问题，这种类型以哪种类型的数据结构存储，当引用类型和原始类 ...
- 2008-06-08 13:52
- 浏览 949
- 评论(0)
The city of Miangyang was hit hard by the May 12 earthquake.Tents line the roads,temporary homes for people living in front of their damaged houses and shops.
But just north of the city,the tents disappear. Low-lying areas have been evacuted and people have been sent to higher ground.Landslides durin ...
- 2008-06-07 21:17
- 浏览 692
- 评论(0)
This will be the first permanent headquarters for the US Institute of Peace,founded by Congress in 1984 as an independent,nonpartisan organization to resolve conflict and promote post-conflict stability and development.
Former US Secretary of State George Shultz said the group is focused on trying to ...
- 2008-06-06 22:01
- 浏览 815
- 评论(0)
The USS Essex and several support vessels are leaving the seas near Burma after spending three weeks trying to deliver aid to the survivors of Cyclone Nargis.
The French navy also has given up efforts to send in aid and is heading away from the Bay of Bengal.
Burma's government has rejected offers to ...
- 2008-06-05 21:17
- 浏览 706
- 评论(0)
Just over a month ago,Burma's deadliest storm in 40 years struck the country,killing tens of thousands of people and rendering millions homeless.The United Nations aid agencies have managed to reach 1.3 million victims in the worst hit parts of the Irrawaddy Delta.
Spokeswoman for the UN Organization ...
- 2008-06-05 06:44
- 浏览 743
- 评论(0)
Louise Arbour drew attention to the natural disasters in China and Burma,also known as Myanmar.She conveyed her condolences to the millions of victims of the earthquake that struck China and the powerful cyclone that ravaged parts of Burma.
The High Commissioner of the blame can be placed on the inte ...
- 2008-06-04 21:07
- 浏览 859
- 评论(0)
School begins in Burma on Monday.But few children from the cyclone struck Irrawaddy Delta will be going.The government has delayed the opening for at least one month in the hardest hit places.The United Nations Children's Fund,UNICEF,is helping the government reopen damaged schools by distributing r ...
- 2008-06-04 20:24
- 浏览 758
- 评论(0)
Top Army General Urges Soldiers to Back Mugabe
A senior military officer in Zimbabwe is quoted as calling on the country's troops to vote for President Robert Mugabe in the upcoming presidential runoff election against opposition leader Morgan Tsvangirai.With voting due to take place in less than fo ...
- 2008-06-03 21:39
- 浏览 714
- 评论(0)
1.
package main;
import java.io.FileOutputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
public class Forest implements Serializable
{
private Tree tree = new Tree();
/**
* @param args
*/
public static void main(String[] args)
{
// TODO Auto-generate ...
- 2008-06-01 18:32
- 浏览 1510
- 评论(0)
The United Nations reports logistical obstacles are making it difficult to get aid to cyclone victims in Burma's Irrawaddy Delta. UN officials say the Burmese authorities have now approved visas for UN aid workers ,but that these is an overwhelming need for assistance.
The UN spokeworman for the Offi ...
- 2008-06-01 11:53
- 浏览 715
- 评论(0)
UN Warns Burma's Food Security at Risk
United Nations agencies warn that Burma's food shortages and escalating prices pose a threat to its food security.Aid agencies also say Burma may need food assistance for at least a year to support communities devastated by Cyclone Nargis.
In its latest asses ...
- 2008-05-31 13:51
- 浏览 750
- 评论(0)
第一章 对象导论
第二章 一切都是对象
第三章 操作符
第四章 控制操作流程
第五章 初始化与清理
第六章 访问权限控制
第七章 复用类
第八章 多态
- 2008-05-30 20:24
- 浏览 649
- 评论(0)
1.谈谈final, finally, finalize的区别。
Final—修饰符（关键字）如果一个类被声明为final，意味着它不能再派生出新的子类，不能作为父类被继承。因此一个类不能既被声明为 abstract的，又被声明为final的。将变量或方法声明为fin ...
- 2008-05-30 20:11
- 浏览 672
- 评论(0)