Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

JavaʵÏÖ¶ÓÁвÙ×÷


import java.util.LinkedList;  
//µ¥Ïò¶ÓÁР 
public class Queue {  
    public Queue() {  
    }  
    private LinkedList list = new LinkedList();  
    public void put(Object v) {  
        list.addFirst(v);  
    }  
    public Object get() {  
        return list.removeLast();  
    }  
    public boolean isEmpty() {  
        return list.isEmpty();  
    }  
}
import java.util.Collection;  
import java.util.Iterator;  
import java.util.LinkedList;  
// Ë«Ïò¶ÓÁР 
public class DQueue implements Collection {  
    private LinkedList lists;  
    public DQueue() {  
        lists = new LinkedList();  
    }  
    public void put_front(Object v) {  
        lists.addFirst(v);  
    }  
    public void put_back(Object v) {  
        lists.addLast(v);  
    }  
    public Object get_front() {  
        return lists.removeFirst();  
    }  
    public Object get_Back() {  
        return lists.removeLast();  
    }  
    public boolean isEmpty() {  


Ïà¹ØÎĵµ£º

javaµãµÎ1

String Óë StringBufferÇø±ð:
String×Ö·û´®¶ÔÏóÊDz»¿É±äµÄ£»StringBufferÊDZ䳤ºÍ¿ÉдµÄ¶¯Ì¬×Ö·ûÐòÁУ¬¿ÉÒÔ×Ô¶¯µØÔö¼Ó¿Õ¼ä¡£
Integer var = new Integer();//ÓÐÓï·¨´íÎó
Integer var = new Integer(2);//悦﵀
javaµÄVector³ÉÔ±ÊÇÒªÓÃelementAt(i)³ÉÔ±º¯ÊýÀ´»ñµÃµÄ£¬²»ÄÜÓÃve[i]µÃµ½¡£
Vector::public Enumeration< ......

Java»ù±¾Óï·¨

 finalize·½·¨
ËüÊÇjava.lang.ObjectÀàÖеķ½·¨. ÊÇprotectedµÄ.
ȱʡʱÕâ¸ö·½·¨ÊǿյÄ. JavaÔËÐÐϵͳÔÚÀ¬»ø»ØÊÕʱÔÚ¶ÔÏó±»³·Ïú֮ǰµ÷ÓÃÕâ¸ö·½·¨. µ«ÓÉÓÚÀ¬»øµ¥Ôª
»ØÊÕµÄʱ¼äÊDz»È·¶¨µÄ.ËùÒÔ²»Äܹý·ÖÒÀÀµËü(ÕâºÍc++µÄÎö¹¹º¯Êý²»Í¬). 
¶øÖ»ÄÜÊÇ"ÔÚ¶ÔÏó±»³·Ïú֮ǰ"×öһЩ´¦Àí.ÀýÈç¿ÉÒÔÔÚÕâÀï¹Ø±Õ¹¹Ôì·½·¨Öдò¿ ......

javaÀàÐÍѧϰ


Ò»¸öjavaÎļþÖУ¬ÓÐÇÒÖ»ÓÐÒ»¸öpublicÀà
float ff= 1.3f;(4B)
int 4B;
long 8B;
double 8B;
byte Ò»×Ö½ÚÕûÐÍ
char 2B
Êý×é
int num[] = new int[3];
int[] num;
num = new int[3];
int [] num = new int[]{1,2,3};
int [][] num;
num = new int[3][4];
//²»Í¬³¤
num = new int[3][];
num[0] = new int[5]; ......

java×Ô¶¨ÒåÀà


¼Ì³Ð£º
javaÖ»Óе¥¼Ì³Ð£¬²»ÄÜͬʱ¼Ì³Ð¶à¸öÀà
class Animal{}
class Fish extends Aniaml{}
 super.(¸¸ÀàÖÐÓë×ÓÀàÏàͬµÄ·½·¨£©();//super-ÌØÊâµÄ±äÁ¿£¬ÓÃÓÚ·ÃÎʸ¸ÀàÖÐÓë×ÓÀàÏàͬµÄ·½·¨£¬ÈçÏÂ
//¸¸Àà
class Fish extends animal
{
 void output()
 {
  System.out.println("Fish");
&n ......

java Õ»Óë¶Ñ ½ñÌìÕæÊÇѧϰÁË£¡£¡

³ö´¦£ºÀ´Ô´ÓÚCSDN ZangXT´óϺ¶Ôijƪ¹ØÓÚjavaÖÐÕ»Óë¶ÑµÄÎÄÕµĻظ´
´óÌå·ÖÎöÒ»ÏÂ
1. Õ»(stack)Óë¶Ñ(heap)¶¼ÊÇJavaÓÃÀ´ÔÚRamÖдæ·ÅÊý¾ÝµÄµØ·½¡£ÓëC++²»Í¬£¬Java×Ô¶¯¹ÜÀíÕ»ºÍ¶Ñ£¬³ÌÐòÔ±²»ÄÜÖ±½ÓµØÉèÖÃÕ»»ò¶Ñ¡£
//Õ»¶¼ÊÇÓÉÔËÐл·¾³À´´¦ÀíµÄ£¬Õâµã£Ã£«£«ºÍ£ê£á£ö£áûÓÐʲô²»Í¬£®¶ÔÓÚ¶Ñ£¬²»¹ý£ê£á£ö£á¶àÁ˸ö£Ç£Ã£®
2.͉˕ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ