用Java代码查看系统默认字符集编码
public class EchoDefaultSystemEncoding
{
public static void main(String[] args)
{
String encoding = System.getProperty("file.encoding");
System.out.println("Default System Encoding:" + encoding);
}
}
相关文档：
http://www.javaworld.com/javaworld/javaqa/2000-05/03-qa-0526-pass.html
Does Java pass by reference or pass by value?
Why can't you swap in Java?
By Tony
Sintes, JavaWorld.com, 05/26/00
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返回多个对象：
PROCEDURE AUTO_SEL_INVOICE_DETAIL(
P_RESULT_LIST OUT SYS_REFCURSOR) AS
BEGIN
OPEN P_RESULT_LIST FOR
SELECT DISTINCT CC.CHARGE_COLLECTION_ID CHARGE_COLLECTION_ID, CC.COLLECT_DATE COLLECT_DATE, C ......
1、饿汉式
package singleton;
/**
* 饿汉式单例
* @author 蒋明原
*
*/
public class HungrySingleton {
/**jvm保证instance只被初始化一次*/
private static HungrySingleton instance = new HungrySingleton();
/**阻止外部使用new实例化对象*/
private Hun ......
public class Test {
/**
* @param args
*/
public static void main(String[] args) {
/**
* 求质数和，
* 如:
* sum(1)=2=2
* sum(2)=2+3=5
* sum(3)=2+3+5=10
* sum(4)=2+3+5+7=17
& ......
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML>
<HEAD>
<TITLE>实例1</TITLE>
<META NAME="Generator" CONTENT="EditPlus">
<META NAME="Author" CONTENT="">
<META NAME=" ......
