android ±àÒëÎÊÌâ java ºÍ javac °æ±¾²»¶Ô
ÔÚ±àÒëandroid code ³öÏÖ°æ±¾²»¶ÔµÄÎÊÌ⣺
ÃèÊöÈçÏ£º
You are attempting to build with the incorrect version
of java.
Your version is: java version "1.6.0_17".
The correct version is: 1.5.
Please follow the machine setup instructions at
http://source.android.com/download
ÍøÉÏÓÐÈËÌṩ½â¾ö·½·¨ÈçÏ£¬Ä¿µÄÊǰ²×°1.5°æ±¾µÄjdk£º
$ sudo apt-get install sun-java5-jdk flex
$ sudo update-java-alternatives -s java-1.5.0-sun
Îҵķ¢ÏֵĽâ¾ö·½·¨ÊÇ£º
±à¼£º ~/mydroid/build/core/main.mk
ÐÞ¸Ä
java_version := $(shell java -version 2>&1 | head -n 1 | grep '[ "]1\.5[\. "$$]')
javac_version := $(shell javac -version 2>&1 | head -n 1 | grep '[ "]1\.5[\. "$$]')
Ϊ
java_version := $(shell java -version 2>&1 | head -n 1 | grep '[ "]1\.6[\. "$$]')
javac_version := $(shell javac -version 2>&1 | head -n 1 | grep '[ "]1\.6[\. "$$]')
Ïà¹ØÎĵµ£º
Java NIO APIÏê½â
ÔÚJDK
1.4ÒÔǰ£¬JavaµÄIO²Ù×÷¼¯ÖÐÔÚjava.ioÕâ¸ö°üÖУ¬ÊÇ»ùÓÚÁ÷µÄ×èÈû£¨blocking£©API¡£¶ÔÓÚ´ó¶àÊýÓ¦ÓÃÀ´Ëµ£¬ÕâÑùµÄAPIʹÓúܷ½
±ã£¬È»¶ø£¬Ò»Ð©¶ÔÐÔÄÜÒªÇó½Ï¸ßµÄÓ¦Óã¬ÓÈÆäÊÇ·þÎñ¶ËÓ¦Óã¬ÍùÍùÐèÒªÒ»¸ö¸üΪÓÐЧµÄ·½Ê½À´´¦ÀíIO¡£´ÓJDK 1.4Æð£¬NIO
API×÷Ϊһ¸ö»ùÓÚ»º³åÇø£¬²¢ÄÜÌṩ·Ç×èÈû(non-blo ......
Java×ÜÓÐËüµÄǧ°ãºÃ´¦Ê¹ÄãÑ¡ÔñËü£¬µ«ÕâÐ©Ëæ±ã··Êé»òÔÚÍøÉϹäһȦ¾ÍÄÜÕÒµ½´ð°¸¡£ÔÚ±¾ÎÄÖУ¬±ÊÕß°Ñ×Ô¼ºÑ§Ï°JavaµÄһЩÇÐÉíÌå»áºÍ¹ý³Ìд³öÀ´£¬¹©³õѧÕß×ö¸ö²Î¿¼¡£ ¡¡¡¡ÎÒÔÚѧϰJavaµÄ¹ý³ÌÖÐÖ÷ÒªÎ§ÈÆÒÔϼ¸¸ö·½ÃæÀ´Ñ§Ï°£º
¡¡¡¡1£®Ê±¿ÌÌáÐÑ×Ô¼ºJavaÊÇÒ»ÖÖOOPÓïÑÔ¹¤¾ß£¬¶ø²»½ö½öÊDZàÂ룬ֻÓÐÕâÑù²ÅÄÜ×ÜÌå°ÑÎÕºÍÔËÓÃJava¡£
¡¡¡ ......
java¼¯ºÏ¿ò¼Üͼ¼°½éÉÜ
ת×Ô:http://hi.baidu.com/%C9%AE_%CC%C6/blog/item/9e2a8b0887008a8ad0581b3d.html
¼ò»¯Í¼£º
Javaƽ̨ÌṩÁËÒ»¸öÈ«Ðµļ¯ºÏ¿ò¼Ü¡£“¼¯ºÏ¿ò¼Ü”Ö÷ÒªÓÉÒ»×éÓÃÀ´²Ù×÷¶ÔÏóµÄ½Ó¿Ú×é³É¡£²»Í¬½Ó¿ÚÃèÊöÒ»×鲻ͬÊý¾ÝÀàÐÍ¡£
Java 2¼¯ºÏ¿ò¼Üͼ
¼¯ºÏ½Ó¿Ú£º6¸ö½Ó¿Ú£¨¶ÌÐéÏß±íʾ£©£¬±íʾ²»Í ......
×ܹ²Á½¸öÎļþTaxTest.javaÓëTax.java
---------------------------------------------------------------------------------------
TaxTest.java
===========================================
import javax.swing.JOptionPane;
public class TestTax{
public static void main(String[] args){
String yea ......
×î½ü¿ªÊ¼ÔÚ¿´java£¬¶ÔAppletÕâ½Ú±È½Ï¸ÐÐËȤ£¬¸ÄÁ˸ÄÊéÉϵĴúÂ룬Ȩµ±Áô¸öÓ¡¼Ç
import java.awt.*;
import java.applet.*;
public class HelloApplet extends Applet
{
Font f1 = new Font("Times New Roman", Font.PLAIN, 12);
Font f2 = new Font("ËÎÌå", Font.BOLD, 24);
Font f3 = new Font("ºÚÌå", Fon ......