javaÖеÄtoString() ·½·¨£¨¶à¿´±¾ÎĵÄÀý×Ó£¡£©
toString() ·½·¨£º
toString()·½·¨ÔÚObjectÀàÖж¨Ò壬Æä·µ»ØÖµÊÇStringÀàÐÍ£¬ÃèÊöµ±Ç°¶ÔÏóµÄÓйØÐÅÏ¢
ÔÚ½øÐÐStringÓëÆäËüÀàÐÍÊý¾ÝµÄÁ¬½Ó²Ù×÷ʱ£¬×Ô¶¯µ÷ÓÃtoString()·½·¨
¿ÉÒÔ¸ù¾ÝÐèÒªÔÚÓû§×Ô¶¨ÒåÀàÐÍÖÐÖØÐ´toString()·½·¨
»ù±¾ÀàÐÍÊý¾Ýת»»ÎªStringÀàÐÍʱ£¬µ÷ÓÃÁ˶ÔÓ¦·â×°ÀàµÄtoString()·½·¨
public class Person {
private String name;
private int age;
private char sex;
public Person()
{
}
public Person(String name,int age, char sex)
{
this.name = name;
this.age = age;
this.sex = sex;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public char getSex() {
return sex;
}
public void setSex(char sex) {
this.sex = sex;
}
public boolean equals(Object obj)
{
if(obj==null)
{
return false;
}
if(obj==this)//´«µÝ½øÀ´µÄ²ÎÊýÊÇ·ñµÈÓÚ±¾¶ÔÏó
{
 
Ïà¹ØÎĵµ£º
¶¨ÒåÒ»¸ö½Ó¿Ú
package com.beckham;
/*
* ¶¨ÒåÒ»¸ö½Ó¿Ú
*/
public interface Move {
public void move() ;
}
ºËÐĵÄʵÏÖÀà
package com.beckham;
/*
* ×î³õµÄ½Ó¿ÚʵÏÖ
*/
public class Tank implements Move {
public void move() {
System.out.println("̹¿Ë¿ª¶¯.......");
}
}
......
¸ÕÔÚ±¾×ÓÉÏ×°ÁËWindows 7 x64£¬È»ºó×°ÁË64λµÄJRE£¬·¢ÏÖEclipseºÍOOÓÐЩ¹ÖÒìµÄÐÐΪ¡£¾ßÌå¶øÑÔ¾ÍÊdzÌÐòÎÞ·¨ÕýÈ·½áÊø£ºµã´°¿ÚÓÒÉÏ·½µÄ²æ²»ºÃʹÁË¡£µãÁËºó½ø³Ì²¢Ã»ÓнáÊø£¬¶øÖ»ÊÇÔÚµ±Ç°´°¿ÚºÍºǫ́´°¿ÚÖ®¼äÇл»¡£ÕýÔÚÏÂ32λµÄJRE£¬µÈ×°ÉÏ¿´¿´½á¹û¡£
¿´ÆðÀ´Ó¦¸ÃÓÐÁ½ÖÖ·½·¨½â¾ö£ºÓÃ32λµÄJRE»òÕß»»³É64λµÄEclipseºÍOO¡£
½â¾ö£º ......
javaÕýÔò±í´ïʽͨ¹ýjava.util.regex°üϵÄPatternÀàÓëMatcherÀàʵÏÖ(½¨ÒéÔÚÔĶÁ±¾ÎÄʱ,´ò¿ªjava APIÎĵµ,µ±½éÉܵ½Äĸö·½·¨Ê±,²é¿´java APIÖеķ½·¨ËµÃ÷,Ч¹û»á¸ü¼Ñ).
PatternÀàÓÃÓÚ´´½¨Ò»¸öÕýÔò±í´ïʽ,Ò²¿ÉÒÔ˵´´½¨Ò»¸öÆ¥Åäģʽ,ËüµÄ¹¹Ôì·½·¨ÊÇ˽ÓеÄ,²»¿ÉÒÔÖ±½Ó´´½¨,µ«¿ÉÒÔͨ¹ýPattern.complie(String regex)¼òµ¥¹¤³§·½· ......
ǰÌìÒ»¸çÃÇÎÊÎÒÒ»¸öСÎÊÌâÈçÏÂ
Java³ÌÐòÈçÏ£º
class yiwei
{
public static void main(String [] args)
{
int i = -4;
int c = i>>>1;
System.out.println(c);
......
==²Ù×÷·ûÓëequals·½·¨µÄÇø±ð£º
==ÊÇÒýÓÃÀàÐͱȽÏÒýÓÃ(Ò²¾ÍÊDZȽÏÄÚÈݺ͵ØÖ·)£»»ù±¾ÀàÐͱȽÏÖµ£»
equals()·½·¨Ö»ÄܱȽÏÒýÓÃÀàÐÍ£¬"=="¿ÉÒԱȽÏÒýÓÃÀàÐͼ°»ù±¾ÀàÐÍ£»
ÌØÀý£ºµ±ÓÃequals()·½·¨½øÐбȽÏʱ£¬¶ÔÀàFile¡¢String¡¢Date¼°·â×°ÀࣨWrapper°ü×° ......