Java ÃæÊÔÖеÄÏÝÚå
µÚÒ»£¬Ì¸Ì¸final, finally, finalizeµÄÇø±ð¡£
×î³£±»Îʵ½¡£
µÚ¶þ£¬Anonymous Inner Class (ÄäÃûÄÚ²¿Àà) ÊÇ·ñ¿ÉÒÔextends(¼Ì³Ð)ÆäËüÀ࣬ÊÇ·ñ¿ÉÒÔimplements(ʵÏÖ)interface(½Ó¿Ú)?
µÚÈý£¬Static Nested Class ºÍ Inner ClassµÄ²»Í¬£¬ËµµÃÔ½¶àÔ½ºÃ(ÃæÊÔÌâÓеĺÜÁýͳ)¡£
µÚËÄ£¬&ºÍ&&µÄÇø±ð¡£
Õâ¸öÎʵúÜÉÙ¡£
µÚÎ壬HashMapºÍHashtableµÄÇø±ð¡£
³£ÎÊ¡£
µÚÁù£¬Collection ºÍ CollectionsµÄÇø±ð¡£
ÄãǧÍò±ð˵һ¸öÊǵ¥ÊýÒ»¸öÊǸ´Êý¡£
µÚÆߣ¬Ê²Ã´Ê±ºòÓÃassert¡£
API¼¶µÄ¼¼ÊõÈËÔ±ÓпÉÄÜ»áÎÊÕâ¸ö¡£
µÚ°Ë£¬GCÊÇʲô? ΪʲôҪÓÐGC?
»ù´¡¡£
µÚ¾Å£¬String s = new String("xyz");´´½¨Á˼¸¸öString Object?
µÚÊ®£¬Math.round(11.5)µÈ춶àÉÙ? Math.round(-11.5)µÈ춶àÉÙ?
µÚʮһ£¬short s1 = 1; s1 = s1 + 1;ÓÐʲô´í? short s1 = 1; s1 += 1;ÓÐʲô´í?
ÃæÊÔÌⶼÊǺܱä̬µÄ£¬Òª×öºÃÊÜÅ°µÄ×¼±¸¡£
µÚÊ®¶þ£¬sleep() ºÍ wait() ÓÐʲôÇø±ð?
¸ãÏ̵߳Ä×î°®¡£
µÚÊ®Èý£¬JavaÓÐûÓÐgoto?
ºÜÊ®ÈýµÄÎÊÌ⣬Èç¹ûÄĸöÃæÊÔµÄÎʵ½Õâ¸öÎÊÌ⣬ÎÒÈ°Ä㻹ÊDZð½øÕâ¼Ò¹«Ë¾¡£
µÚÊ®ËÄ£¬Êý×éÓÐûÓÐlength()Õâ¸ö·½·¨? StringÓÐûÓÐlength()Õâ¸ö·½·¨?
µÚÊ®Î壬OverloadºÍOverrideµÄÇø±ð¡£OverloadedµÄ·½·¨ÊÇ·ñ¿ÉÒԸı䷵»ØÖµµÄÀàÐÍ?
³£ÎÊ¡£
µÚÊ®Áù£¬SetÀïµÄÔªËØÊDz»ÄÜÖظ´µÄ£¬ÄÇôÓÃʲô·½·¨À´Çø·ÖÖظ´Óë·ñÄØ? ÊÇÓÃ==»¹ÊÇequals()? ËüÃÇÓкÎÇø±ð?
µÚÊ®Æߣ¬¸øÎÒÒ»¸öÄã×î³£¼ûµ½µÄruntime exception¡£
Èç¹ûÄãÕâ¸ö´ð²»³öÀ´£¬ÃæÊÔµÄÈË»áÈÏΪÄãûÓÐʵ¼Ê±à³Ì¾Ñé¡£
µÚÊ®°Ë£¬errorºÍexceptionÓÐʲôÇø±ð?
µÚÊ®¾Å£¬List, Set, MapÊÇ·ñ¼Ì³Ð×ÔCollection½Ó¿Ú?
µÚ¶þÊ®£¬abstract classºÍinterfaceÓÐʲôÇø±ð?
³£ÎÊ¡£
µÚ¶þʮһ£¬abstractµÄmethodÊÇ·ñ¿ÉͬʱÊÇstatic,ÊÇ·ñ¿ÉͬʱÊÇnative£¬ÊÇ·ñ¿ÉͬʱÊÇsynchronized?
µÚ¶þÊ®¶þ£¬½Ó¿ÚÊÇ·ñ¿É¼Ì³Ð½Ó¿Ú? ³éÏóÀàÊÇ·ñ¿ÉʵÏÖ(implements)½Ó¿Ú? ³éÏóÀàÊÇ·ñ¿É¼Ì³ÐʵÌåÀà(concrete class)?
µÚ¶þÊ®Èý£¬Æô¶¯Ò»¸öÏß³ÌÊÇÓÃrun()»¹ÊÇstart()?
µÚ¶þÊ®ËÄ£¬¹¹ÔìÆ÷ConstructorÊÇ·ñ¿É±»override?
µÚ¶þÊ®Î壬ÊÇ·ñ¿ÉÒԼ̳ÐStringÀà?
µÚ¶þÊ®Áù£¬µ±Ò»¸öÏ߳̽øÈëÒ»¸ö¶ÔÏóµÄÒ»¸ösynchronized·½·¨ºó£¬ÆäËüÏß³ÌÊÇ·ñ¿É½øÈë´Ë¶ÔÏóµÄÆäËü·½·¨?
µÚ¶þÊ®Æߣ¬try {}ÀïÓÐÒ»¸öreturnÓï¾ä£¬ÄÇô½ô¸úÔÚÕâ¸ötryºóµÄfinally {}ÀïµÄcode»á²»»á±»Ö´ÐУ¬Ê²Ã´Ê±ºò±»Ö´ÐУ¬ÔÚreturnÇ°»¹ÊǺó?
µÚ¶þÊ®°Ë£¬±à³ÌÌâ: ÓÃ×îÓÐЧÂʵķ½·¨Ëã³ö2³ËÒÔ8µÈ춼¸?
ÓÐC±³¾°
Ïà¹ØÎĵµ£º
Java 7ÒѾÍê³ÉµÄ7´óй¦ÄÜ£º
1£©¶Ô¼¯ºÏÀàµÄÓïÑÔÖ§³Ö£»
2£©×Ô¶¯×ÊÔ´¹ÜÀí£»
3£©¸Ä½øµÄͨÓÃʵÀý´´½¨ÀàÐÍÍƶϣ»
4£©Êý×Ö×ÖÃæÁ¿Ï»®ÏßÖ§³Ö£»
5£©switchÖÐʹÓÃstring£»
6£©¶þ½øÖÆ×ÖÃæÁ¿£»
7£©¼ò»¯¿É±ä²ÎÊý·½·¨µ÷Óá£
ÏÂÃæÎÒÃÇÀ´×Ðϸ¿´Ò»ÏÂÕâ7´óй¦ÄÜ£º
¶Ô¼¯ºÏÀàµÄÓïÑÔÖ§³Ö
Java½«°üº¬¶Ô´´½¨¼¯ºÏÀàµÄµÚÒ»ÀàÓïÑÔÖ§³Ö¡ ......
inner classºÍouter classÖ®¼äµÄreflectionÓ¦Óá£
package com.gaoqian.reflection;
import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.lang.reflect.Constructor;
import java.lang.reflect.Method;
class IncludeInn ......
ÔÚMerlin֮ǰ,±àдSocket³ÌÐòÊDZȽϷ±ËöµÄ¹¤×÷.ÒòΪÊäÈëÊä³ö¶¼±ØÐëͬ²½.ÕâÑù,¶ÔÓÚ¶à¿Í»§¶Ë¿Í»§/·þÎñÆ÷ģʽ,²»µÃ²»Ê¹ÓöàÏß³Ì.¼´ÎªÃ¿¸öÁ¬½ÓµÄ¿Í»§¶¼·ÖÅäÒ»¸öÏß³ÌÀ´´¦ÀíÊäÈëÊä³ö.Óɴ˶ø´øÀ´µÄÎÊÌâÊÇ¿ÉÏë¶øÖªµÄ.³ÌÐòÔ±²»µÃ²»ÎªÁ˱ÜÃâËÀËø,Ḭ̈߳²È«µÈÎÊÌâ,½øÐдóÁ¿µÄ±àÂëºÍ²âÊÔ.ºÜ¶àÈ˶¼ÔÚ±§Ô¹ÎªÊ²Ã´²»ÔÚJavaÖÐÒýÈëÒì²½ÊäÈëÊä³ö ......
ÔÚ±±¾©´ôÁËÒ»¸öÔ¶àÁË£¬ÎªÁËÉú´æ£¬±Ê¼Ç±¾µçÄÔÒ²¼úÂôÁË£¬²»ÖªµÀ¹¤×÷ÕâôÄÑÕÒ¡£
Ò»¸öÕý¾µÄÃæÊÔҲûÓС£
ÎÒ´Ó07Äê±ÏÒµÒѾÀË·Ñ2Äêʱ¼äÁË£¬ÎÒÔ¸ÒâÓðëÄêµÄ0н³êÀ´»»È¡ÎÒÈëÐпª·¢£»
Ï£Íû±±¾©Óй«Ë¾ÌṩÈÃÎÒʵÏÖ×ÔÎÒ¼ÛÖµµÄƽ̨¡£
Èç¹ûÄú¶ÔÎÒµÄÄÜÁ¦ÓÐÒÉÎÊ£¬¹µÍ¨¿ÉÒÔÁ˽â ......
package javatest_danny;
import java.lang.reflect.*;
public class refectmethodtest {
public static void main(String agrs[])
{
try
{
Class cmed=Class.forName("javatest_danny.baseclass");
&n ......