java_Ñ¡ÔñÅÅÐò·¨
Java ʵÏÖµÄÑ¡ÔñÅÅÐò·¨£¬ÏÈÔÚNetbeansÀïµ÷ÊÔÔËÐÐÁËһϣ¬È»ºóÓÖÔÚEclipseÁËÔËÐÐÁËһϡ£
public class ArraySort {
public static void main(String[] args) {
int Arrays[]={50,45,2,678,90,40,};
int i,j,temp,min;
int len=Arrays.length
;
System.out.println("before sort");
for(i=0;i<len;i++)
{ System.out.print(" "+Arrays[i]);
}
for(i=0;i<len;i++)
{min=i;
for(j=i+1;j<len;j++)
{if(Arrays[min]>Arrays[j])
{min=j;}
}
if(i!=min)
{temp=Arrays[i];
Arrays[i]=Arrays[min];
Arrays[min]=temp;
}
}
System.out.println("");
System.out.println("after sort");
for(i=0;i<len;i++)
{
System.out.print(" "+Arrays[i]);
}
}
}
ÔËÐнá¹ûÈçÏÂ
run£º
before sort
50 45 2 678 90 40
after sort
2 40 45 50 90 678³É¹¦Éú³É£¨×Üʱ¼ä£º0 Ã룩
---------¼á³Öjavaµ½µ×
Ïà¹ØÎĵµ£º
±¾ÎÄÄÚÈÝÕª×Ô£º¡¶Java Web¿ª·¢½Ì³Ì——ÈëÃÅÓëÌá¸ßƪ£¨JSP+Servlet£©¡·
ÏÂÃæÒÔ×¢²á¹ý³ÌÖÐÓû§ÃûÊÇ·ñ´æÔÚµÄÑé֤ΪÀý½éÉÜAJAXµÄÓ¦Óá£
¹¦ÄÜÃèÊö£ºÓû§×¢²áµÄÓû§Ãû²»ÔÊÐíÖØ¸´£¬ËùÒÔÔÚÓû§ÌύʱºòÐèÒªÅжϡ£ÎªÁËÈÃÓû§ÔçÖªµÀ½á¹û£¬ÔÚÓû§ÊäÈëÓû§ÃûÖ®ºó¾ÍÓ¦¸Ã½øÐÐÅжϣ¬¿ÉÒÔ²ÉÓÃAJAX½øÐд¦Àí¡£
¼ÙÉ裺ΪÁ˼ò»¯´ú ......
֮ǰÔÚ×öfindbugsµÄʱºò¾³£»á²é¿´×Ö½ÚÂ룬¶¼ÊÇÒ»Öª°ë½âµÄ
ÄÇÌì¿´µ½Ò»¸öÎÊÌ⣬¸ÕºÃ¿ÉÒÔ´Ó×Ö½ÚÂëÀ´½âÊÍ
ÕâЩÌâÄ¿³£¼ûÓÚÃæÊÔÌ⣬ͨ³£ÒªÊÇ˸ÒÕâôд´úÂ룬ÍêÈ«ÊÇÔÚÕÒËÀ¡£¡£
Java´úÂë
public class Test {
public static void main(String[]  ......
ÔÚJavaÓ¦ÓÃÖУ¬ÈÕÆÚºÍʱ¼ä×÷Ϊ»ù±¾µÄÐÅÏ¢ÀàÐÍÓ¦ÓõÄÌØ±ð¹ã·º£¬ÀýÈç»ñÈ¡µ±Ç°Ê±¼ä£¬¼ÆËãijЩ²Ù×÷Ö´ÐеÄʱ¼äµÈ¡£ÈÕÆÚ´¦ÀíÏà¹ØµÄÀà°üÀ¨DateºÍCalendar£¬Í¨¹ýDateºÍCalendar¿ÉÒÔ»ñÈ¡µ±Ç°Ê±¼ä£¬¶Ôʱ¼ä½øÐÐһЩÔËË㣬»ñȡʱ¼äÖеÄÄê¡¢Ô¡¢ÈÕ¡¢Ê±¡¢·Ö¡¢ÃëºÍÐÇÆÚµÈÐÅÏ¢¡£ÔÚÊäÈëºÍÊä³öµÄʱºò¾³£Óõ½×Ö·û´®ÐÎʽµÄʱ¼ä£¬Õâ¾ÍÐèҪʱ¼äºÍ ......
package test;
import java.io.File;
import org.jivesoftware.smack.Chat;
import org.jivesoftware.smack.ConnectionConfiguration;
import org.jivesoftware.smack.MessageListener;
import org.jivesoftware.smack.XMPPConnection;
import org.jivesoftware.smack.XMPPException;
import org.jivesoftware.smack ......
JAVAÒì³£¿ÉÒÔ·ÖΪÈýÖÖ£º
1.checked Òì³£
±àÒëÆ÷±£Ö¤ËùÓеÄcheckedÒì³£¶¼»áµÃµ½´¦Àí£¬ÕâÑù¾Í¿ÉÒÔÔÚ±àÒëÆÚ¼ì²éÒì³£´¦Àí¡£Í¨³£×Ô¶¨ÒåµÄÒì³£Ó¦¸ÃΪ´ËÀàÐÍ
2.runtimeÒì³£
ÊÇJVMÔÚ³ÌÐòÔËÐÐÆÚ·¢ÏÖµÄÎÞЧ²Ù×÷£¬ÀýÈçNullPointerException
3.Errors
ÓÉJVM¼ì²âµ½µÄʧ°Ü²Ù×÷£¬ÀýÈçOutOfMe ......