JAVA·´ÉäÀà
import java.lang.reflect.Array;
public class ReflectionTest {
public static void main(String[] args) {
try {
Example obj = new Example();
java.lang.reflect.Field[] F1 = obj.getClass().getDeclaredFields();
String Name = new String();
for (int i = 0; i < F1.length; i++) {
System.out.println(F1[i].getType());
System.out.println(F1[i].getName());
Name = F1[i].getName();
}
//Assume that you have known that "F1[1]" is the char array
int length = Array.getLength(F1[1].get(obj));
System.out.println("The length of c1 is: " + length);
} catch (Exception e) {
System.out.println("err occur");
}
}
}
class Example {
int I1 = 3;
char c1[] = new char[10];
}
Ïà¹ØÎĵµ£º
oracleÖеÄBLOB×Ö¶ÎÊÇ´æ´¢2½øÖƵÄÎļþ£¬±ÈÈçÎļþ£¬Í¼Æ¬µÈ¡£
1¡¢°Ñ±¾µØÎļþдÈëÊý¾Ý¿â
package com.data;
import java.io.File;
import java.io.FileInputStream;
import java.io.OutputStream;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.R ......
ÀûÓÃjava·´Éä¼¼ÊõÌáÈ¡ÀàÐÅÏ¢
1 package day15;
2
3 import java.lang.reflect.*;
4
5 public class ReflectionTest {
6
7 public& ......
ÔÚjava¿ª·¢µÄÔçÆÚ£¬Öص㱻·ÅÔÚÁ˿ͻ§¶Ë¿ª·¢¡£ÓïÑÔÖжÔÓÚappletºÍ°²È«ÏÂÔØµÄÖ§³Ö
¶ÔÓÚÍòÎ¬Íø£¨WWW£©µÄ·¢²¼¿´ÉÏÈ¥ÊǸö²»´íµÄÖ÷Òâ¡£µ«ÊÇÏÖʵÊÇjava×î´óµÄ³É¹¦ÔÚÓÚ·þÎñÆ÷¶Ë£¬javaµÄÇ¿´ó¹¦ÄܺÍÊÊÓ¦ÐÔÓ®µÃÁË·þÎñÆ÷¶Ë¿ª·¢ÕßµÄÐÄ¡£Í¬Ê±£¬¿Í»§¶ËµÄ¿ª·¢ÂäºóÁË¡£¼¬ÊֵĿª·¢ÎÊÌâÏÞÖÆÁËappletµÄЧÓ㬿ª·¢Õß±»ÆÈתÏò»ùÓÚä¯ÀÀÆ÷µÄÊݿͻ§¶ ......
Java ÓïÑÔµÄCalendar(ÈÕÀú),Date(ÈÕÆÚ), ºÍDateFormat(ÈÕÆÚ¸ñʽ)×é³ÉÁËJava±ê×¼µÄÒ»¸ö»ù±¾µ«ÊǷdz£ÖØÒªµÄ²¿·Ö. ÈÕÆÚÊÇÉÌÒµÂß¼¼ÆËãÒ»¸ö¹Ø¼üµÄ²¿·Ö. ËùÓеĿª·¢Õß¶¼Ó¦¸ÃÄܹ»¼ÆËãδÀ´µÄÈÕÆÚ, ¶¨ÖÆÈÕÆÚµÄÏÔʾ¸ñʽ, ²¢½«Îı¾Êý¾Ý½âÎö³ÉÈÕÆÚ¶ÔÏó. ÎÒÃÇдÁËÁ½ÆªÎÄÕÂ, ÕâÊǵÚһƪ, Î ......