void test2£¨£© {
System.out.println£¨¡°This£é£óDefinitiontest2£¨£©¡±
}
}
Çë·Ö±ðÑ¡Ôñ¿ÉÒÔ·ÃÎÊtest1£¨£©ºÍtest2£¨£©Á½¸ö·½·¨µÄ·¶Î§£º
a.DefinitionÀàÄÚ²¿¿ÉÒÔ·ÃÎÊ
b.com.huawei.test°üÖÐËùÓÐÆäËüµÄÀà¿ÉÒÔ·ÃÎÊ
c.¸ÃÓ¦ÓóÌÐòÖÐËùÓеÄÀà¿ÉÒÔ·ÃÎÊ
d.¼Ì³ÐDefinitionµÄ×ÓÀà¿ÉÒÔ·ÃÎÊ
¡¾´ð°¸¡¿test1£ºa b d test2£ºa b
¶þ¡¢µ¥Ñ¡Ì⣺
1¡¢¹ØÓÚpackageºÍ import¹Ø¼ü×ÖÏÂÃæ˵·¨´íÎóµÄÊÇ£º
a.Èç¹ûÒ»¸öÀ಻ָÕâpackage£¬¾Í»á±»¹éÀൽĬÈ쵀 package
b.package¹Ø¼ü×Ö±ØÐë·ÅÔÚ import¹Ø¼ü×Ö֮ǰ
c.import¹Ø¼ü×Ö±ØÐë·ÅÔÚ package¹Ø¼ü×Ö֮ǰ
d.ÐéÄâ»úÒѾȱʡÒýÈëÁËjava.lang.*°ü£¬ËùÒÔ±àд³ÌÐòµÄʱºò²»ÐèÒªÒýÖ÷¸Ã°ü
[´ð°¸]C
2¡¢¹ØÓÚjavaµÄ¼¯ºÏÏÂÃæ˵·¨´íÎóµÄÊÇ£º
a.Treeset¡¢hashset set
b.ΪÁË´ïµ½×îÓÅËã·¨·ÅÈëµ½HashsetºÍhashmapµÄ¶ÔÏó¶¼ÒªÇó¶¨ÒåºÏÀíµÄ hashcodeÖµ
c.´ÓlinkedlisÖлñÈ¡µü´úÆ÷iterator£¬²Ù×÷¸ÃiteratorµÄͬʱ¿ÉÒÔÐÞ¸ÄÔ À´µÄlinkedlist
d.MapÓÃÓÚ´æ·Å¼üÖµ¶Ô£¬HashMapʹÓùþÏ£Ëã·¨£¬TreeMapÄܹ»¶Ô´æ·ÅµÄ¼ü½øÐÐÅÅÐò¡£
[´ð°¸]C
3¡¢¹ØÓÚÊý¾Ý¿âÁ¬½Ó³Ø϶øÏê·¨´íÎóµÄÊÇ£º
1£©Êý¾Ý¿âÁ¬½Ó³Ø¿ÉÒÔÌáÊв¢·¢·ÃÎÊÊý¾Ý¿âµÄÐÔÄÜ
2£©¿Í»§³ÌÐòʹÓÃÁ¬½Ó³Ø·ÃÎÊÊý¾Ý¿âʱ£¬±ØÐë´ÓÁ¬½Ó³Ø»ñÈ¡Á¬½Ó
3£©¿Í»§³ÌÐò´ÓÁ¬½Ó³Ø»ñÈ¡µÄÁ¬½ÓʹÓÃÍêÖ®ºó±ØÐë¹Ø±ÕÎïÀíÁ¬½Ó
4£©Á¬½Ó³ØÐèÒª¶Ô¿ÉÓõĿÕÏÐÁ¬½Ó½øÐÐά»¤
[´ð°¸]3
4¡¢¹ØÓÚStringBufferÏÂÃæ˵·¨´íÎóµÄÊÇ£º
a.StringBufferÊÇ´ÓBufferedWriter¼Ì³Ð£¬ÓÃ×÷×Ö·û´®Êä³ö
b.ʹÓÃStringBuffer¿ÉÒÔÌá¸ß¶à¸ö×Ö·û´®Ïà¼ÓµÄЧÂÊ
c.¶à¸ö×Ö·û´®Ïà¼ÓʹÓÃStringBuffer²»»á²úÉú½ÏÉÙµÄÄÚ´æËéƬ
d.StringBufferºÍStringµÄÇø±ðÔÚÓÚStringBufferÊÇ¿ÉÒÔÐ޸ĵģ¬stringÊÇÖ»¶ÁµÄ
[´ð°¸]a
Èý¡¢¶àÑ¡Ìâ
1¡¢¹ØÓÚÀà·¾¶ÏÂÃæ˵·¨ÕýÈ·µÄÊÇ£º
1£©ÔËÐÐJava³ÌÐòʱÈç¹ûÓõ½ÁËÆäËüĿ¼ÖеÄÀà±ØÐëÖ¸¶¨Àà·¾¶£¬»òÕßÔÚ»·¾³±äÁ¿ÖÐÉèÖÃÀà·¾¶
2£©classÎļþµÄÀà·¾¶±ØÐëÖ¸¶¨µ½ÎļþÃû
3£©classÎļþµÄÀà·¾¶Ö»ÐèÒªÖ¸¶¨µ½°üµÄҪĿ¼
4£©jarÎļþ°üµÄÀà·¾¶Ö»ÐèÒªÖ¸¶¨µ½¸ÃÎļþµÄĿ¼
[´ð°¸]1 3
2¡¢¹ØÓÚÏß³ÌÏÂÃæ˵·¨ÕýÈ·µÄÊÇ£º
a.JavaÖеÄÏß³ÌÓÅÏȼ¶·ÖΪ10¼¶
b.ͨ¹ýµ÷ÓÃÏ̵߳Ärun()·½·¨Æô¶¯Ò»¸öÏß³Ì
c.ͨ¹ýµ÷ÓÃÏ̵߳Ästart£¨£©·½·¨Æô¶¯Ò»¸öÏß³Ì
d.ͨ¹ýµ÷ÓÃÏ̵߳Ästop£¨£©·½·¨¿ÉÒÔ°²È«µÄÍ£Ö¹Ò»¸öÏß³Ì
¡¾´ð°¸¡¿a c
3¡¢ÏÂÃæÄÄÖÖÀàÐ͵ijÌÐòÊÇÔËÐÐÔÚä¯ÀÀÆ÷ÉÏ
a.JSP
b.java script
c.Servlet
d.Applet
¡¾´ð°¸¡¿b d
ËÄ¡¢Ó¦ÓÃÌâ
1¡¢ÏÂÃæ³ÌÐò½¨Á¢Ò»¸ö·þÎñÆ÷ͨ¹ý¼àÌý8080¶Ë¿ÚÏò¿Í»§¶ËÊä³ö¡°Welcome£¡¡±×Ö·û´®£¬Çë²¹³äȱÉٵijÌÐòƬ¶Ï£º
public class WelcomeServer
{
public static void main£¨String[]a£©throws IOException
{
1
system.out.println£¨¡±WelcomServer started£¡¡±£©
while£¨true£©
{
Socket client = 2
system.out.println£¨¡±A client come£¡¡±£©
try
{
printWriter = new printWriter£¨
new Bufferedwriter£¨ 3 £¨ 4 £©£©£©
writer.println£¨¡±Welcome£¡£©
}
catch£¨IOException ioe£©
{
system..out.println£¨¡±something error£¡¡±£©
}
finally
{
try
{
5
}
catch£¨IOException ioe2£©
{
Syxtem.out.println£¨¡±Something error£¡¡±£©
}
}
}
}
[´ð°¸]
1 ServerSocket server = new ServerSOCKET£¨8080£©
2 server.accept£¨£©
3 new OutputStreamWriter
4 client.getOutputStream£¨£©
5 client.close£¨£©
[ÌâÄ¿1]ÓдúÂëÈçÏÂ:
public class Test
{
public inti = 0
public static void main£¨String[]args£©
{
Test t1 = new Test£¨£©£»
Test t2 = t1£»
T1.i = 1
Sysem.out.println£¨t2.i£©£»
String a =¡±abc¡±
String b = a£»
a = ¡±123¡±£»
System.oukt.println£¨b£©£»
}
}
Çë¸ø³öÔËÐнá¹û¡£
[ÌâÄ¿2]
Çë¼òÊöServletµÄÉúÃüÖÜÆÚ£¬ÒÔ¼°¸÷½×¶ÎServletÈÝÆ÷Ëù×öµÄÊ¡£
[ÌâÄ¿3]ÔÚÆÕͨӦÓóÌÐòÖÐÓÃJDBC×öÒ»¸öÊý¾Ý¿âÊÂÎñ£¬³ÌÐòƬ¶ÏÈçÏÂÇëÌî¿Õ£º
String driver = ¡°com.informix.jdbc.IfxDriver¡±£»
Sring ur1 =
¡°jdbc£ºinformic-sq1i£º//11.6.6.11£º9002/test£ºINFORMICERVER=ifx¡±£»
String uer = ¡°informix¡±£»
String password = ¡°update TESTDB set status=¡¯2¡¯¡±£»
1
Connection conn = 2
Statement stment = conn.createStatement£¨£©£»
Try
{
3
stment.executeUpdate£¨sq1£©
4
}
catch£¨SQLException e£©
{
try{
5
}
catch£¨SQLExecption e1£©
{//do nothing}
}
finally {
try {
6
7
}
}
[ÌâÄ¿4]
Ãû´Ê½âÊÍ£ºSOAP£¬UDDI£¬WSDL¡£
[ÌâÄ¿5]϶øÊÇÒ»¶Î¶ÁÈ¡d ÅÌÏÂtest.txtÎļþÄÚÈÝ£¬²¢´òÓ¡ÆäÄÚÈÝÇëÖ¸³öÏÂÃæ´úÂëÖеĴíÎó £¬²¢¸ÄÕý¡£
Import java.io.*£»
Public class File Test
{
public static void main£¨String[]args£©
{
File f = new File£¨¡±d£º/test.dat¡±£©£»
Byte[]b = new byte[1024]£»
Int point = 0£»
While £¨£¨point=fi.read£¨b£©£©£¡=-1£©
{
for£¨int i=0£»i¡´point£»i++£©
{
System.out.print£¨b[i]£»
}
}
}
}
[ÌâÄ¿6]ÃèÊöÒ»ÏÂLinkedList£¬ArrayList£¬VectorµÄÇø±ð£¬