????2??HelloWorld

???????File -> New -> Project ??????????????"Android Project"

?????????д????????????????????(???????????????Google APIs??????????????????????????????AVD)

?????????????????

????Project Name: ????????????????е??????

????Package Name: ?????????JAVA?淶???e???????????????????????????????helloworld.test??

????Activity Name: ??????????????????????????Android??Activity??????????Activity???????????????????????????????????????????????棬???????????

????Application Name: ??????????????????ó??????

??????"?????"?? "Use default location" ??????????????????????????

???????Finish?????Eclipse??Run??????Run Configurations…

???????“Android Application”????????????(????????????и?“+”??)???????“Android Application”?? ?и??μ????“New_configuration”(???????????????????)??