javaÃæÊÔÌ⣡¾ä×Ó°´ÕÕµ¥´Ê·´Öã¡
Óöµ½Ò»¸öjava±à³ÌÃæÊÔÌ⣬µ±Ê±Ã»ÓÐд³öÀ´£¬»ØÀ´×ÐϸÏëÁËÏ룬д³ö´ð°¸£¬Ò»¹²ÒÔºó²Î¿¼£¡
ÒªÇ󣺽«×Ö·û´®"I am a good student."ת»»³É"student. good a am I"
java´úÂëΪ£º
public class Application
{
private String s;
public void setS(String s)
{
s=s;
}
public String getS()
{
return s;
}
private static String sr(String s)
{
int l=s.length();
String space=" ";
String strnew="";
int i=0;
while(s.contains(space))
{
int spaceIndexS=s.lastIndexOf(space);
if(i==0)
{
strnew=strnew+s.substring(spaceIndexS+1);
}
else
{
strnew=strnew+s.substring(spaceIndexS);
}
s=s.substring(0,spaceIndexS);
i++;
}
strnew+=space+s;
return strnew;
}
public static void main(String[] args)
{
Application a=new Application("I am a good student.");
System.out.println(a.sr(a.getS));
}
}
Ïà¹ØÎĵµ£º
Javaѧϰ´ÓÈëÃŵ½¾«Í¨
Ò»¡¢ JDK (Java Development Kit)
JDKÊÇÕû¸öJavaµÄºËÐÄ£¬°üÀ¨ÁËJavaÔËÐл·¾³£¨Java Runtime Envirnment£©£¬Ò»¶ÑJava¹¤¾ßºÍJava»ù´¡µÄÀà¿â(rt.jar)¡£²»ÂÛʲôJavaÓ¦Ó÷þÎñÆ÷ʵÖʶ¼ÊÇÄÚÖÃÁËij¸ö°æ±¾µÄJDK¡£Òò´ËÕÆÎÕJDKÊÇѧºÃJavaµÄµÚÒ»²½¡£×îÖ÷Á÷µÄJ ......
ÀàµÄ³õʼ»¯ºÍ¶ÔÏó³õʼ»¯ÊÇ JVM ¹ÜÀíµÄÀàÐÍÉúÃüÖÜÆÚÖзdz£ÖØÒªµÄÁ½¸ö»·½Ú£¬Google ÁËÒ»±éÍøÂ磬ÓйØÀà×°ÔØ»úÖÆµÄÎÄÕµ¹ÊDz»ÉÙ£¬È»¶øÀà³õʼ»¯ºÍ¶ÔÏó³õʼ»¯µÄÎÄÕ²¢²»¶à£¬ÌرðÊÇ´Ó×Ö½ÚÂëºÍ JVM ²ã´ÎÀ´·ÖÎöµÄÎÄÕ¸üÊÇÏÊÓÐËù¼û¡£
±¾ÎÄÖ÷Òª¶ÔÀàºÍ¶ÔÏó³õʼ»¯È«¹ý³Ì½øÐзÖÎö£¬Í¨¹ýÒ»¸öʵ¼ÊÎÊÌâÒýÈ룬½«Ô´´úÂëת»»³É JVM ×Ö½ÚÂëºó£¬ ......
µÚÒ»ÕÂ
¿Î³Ì¸ÅÊö
javaµÄÉè¼ÆÄ¿±ê
¼òµ¥
¿ÉÒÆÖ²--
ÃæÏò¶ÔÏó--
·Ö²¼Ê½¶ÔÏó
¸ßÐÔÄÜ
½¡×³
°²È«
¶¯Ì¬
Ìåϵ½á¹¹ÖÐÁ¢
javaÊDZà³ÌÓïÑÔ Ìåϵ¼Ü¹¹ ˼¿¼·½Ê½ ÔËÐл·¾³
javaÈýÖÖºËÐÄ
javaÐéÄâ»ú jvm
À¬»øÊÕ¼¯»úÖÆ
´úÂ밲ȫÐÔ¼ì²â
¼ÆËã»ú¸ß¼¶ÓïÑÔÀàÐÍ£º±àÒëÐÍ ½âÊÍÐÍ
javaÊÇÁ½ÖÖÀàÐ͵ĽáºÏ
javaÔ´³ÌÐò ×Ö½ÚÂëÎļþ »úÆ ......
µÚÊ®ÕÂ
guiÓ¦ÓóÌÐòÉè¼Æ
awt abstractwindow toolkit
gui graphical user interface
×é¼þcomponent
container ÈÝÆ÷
window ¶¥¼¶´°¿Ú
panel ½ÓÄÉÆäËû×é¼þµÄÈÝÆ÷ ²»ÄܶÀÁ¢´æÔÚ
±ØÐëÔÚÆäËûÈÝÆ÷ÖУ¨Èçwindow»òapplet£©
frameÊÇwindow×ÓÀà Ч¹ûÊÇÒ»¸ö´°¿Úsetvisible£¨true£©¿É¼û
component
container
window &n ......
javaÖеÄÀàÐÍת»»¡£
¶ÔÓÚ»ù±¾Êý¾ÝÀàÐÍ£¬µ±ÓÉ“ÕÀàÐ͔תΪ“¿íÀàÐ͔ʱ£¨ÀýÈ磺double d = 1;), ±àÒëÆ÷»á×Ô¶¯ÌáÉýintÐ͵½doubleÐÍ£¬ ¶ø¶ÔÓÚÓÉ“¿íÀàÐ͔תΪ“ÕÀàÐÍ”£¨ÀýÈ磺 int i = (int)1.0;£© ʱ£¬ÓÉÓÚת»»Ê±¿ÉÄÜÓÐÐÅÏ¢¶ªÊ§µÄÎ ......