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class Base
{
public:
Base()
{
init();
}
virtual ~Base() {}
protected:
int value;
virtual void init()
{
value = 100;
}
};
class Derived : public Base
{
public:
Derived()
{
init();
}
protected:
void init()
{
cout << "value = " << value << endl;
// ×öһЩ¶îÍâµÄ³õʼ»¯¹¤×÷
}
};
int main(int argc, char* argv[])
{
Base* pb;
pb = new Derived();
delete pb;
return 0;
}
Ö´Ðнá¹ûÊÇ
value = 100
ÔÙ¿´java´úÂ룺
class Base
{
public Base()
{
init();
}
protected int value;
protected void init()
{
value = 100;
}
}
class Derived extends Base
{
public Derived()
{
init();
}
protected void init()
{
System.out.println("value = " + value);
// ×öһЩ¶îÍâµÄ³õʼ»¯¹¤×÷
}
}
public class Test
{
public static void main(String[] args)
{
Base base = new Derived();
}
}
Ö´Ðнá¹ûÊÇ
value = 0
value = 0
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http://topic.csdn.net/u/20100524/14/0eff992a-2849-4db6-bdaa-d4a200e79b7c.html
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import java.awt.Robot;
import java.io.IOException;
import java.lang.reflect.Field;
public class TestServer {
Class<?> key;
Robot ro;
{//·Ç¾²Ì¬¿éÓÃÓÚ³õʼ»¯ÀàÀàµÄ·Ç¾²Ì¬³ÉÔ±
try {
key = Class.forName("java.awt.event.KeyEvent");
ro = new Robot();
}
catch (Excep ......
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ÎÊÌâÊÇÓÉÓÚdomino jre µÄĬÈÏ°²È«²»Ö§³ÖReflectPermission "suppressAccessChecks";
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permission java.lang.reflect.ReflectPermission
" ......
1. SerialBean
SerialBeanÊDZ¾Àà¿âÓëÆäËûÓ¦ÓóÌÐòµÄ½Ó¿Ú¡£¸ÃÀà¿âÖж¨ÒåÁËSerialBeanµÄ¹¹Ôì·½·¨ÒÔ¼°³õʼ»¯´®¿Ú£¬´Ó´®¿Ú¶ÁÈ¡Êý¾Ý£¬Íù´®¿ÚдÈëÊý¾ÝÒÔ¼°¹Ø±Õ´®¿ÚµÄº¯Êý¡£¾ßÌå½éÉÜÈçÏ£º
public SerialBean(int PortID)
±¾º¯Êý¹¹ÔìÒ»¸öÖ¸ÏòÌض¨´®¿ÚµÄSerialBean£¬¸Ã´®¿ÚÓɲÎÊýPortIDËùÖ¸¶¨¡£PortID = 1 ±íʾCOM1£¬PortID = 2 ......
import java.util.ArrayList;
import java.util.HashMap;
public class Client {
/**
* @param args
*/
public static void main(String[] args) {
test1();
System.out.println("==================================");
test2();
......