java android helloworld

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Android开发之旅：环境搭建及HelloWorld

https://www.cnblogs.com/skynet/archive/2010/04/12/1709892.html

Windows10安装AndroidStudio并运行一个项目

http://dreamphp.cn/blog/detail?blog_id=19770

android-studio-2020.3.1.22-windows.exe

https://developer.android.google.cn/studio/index.html

Platform	Android Studio package	Size	SHA-256 checksum
Windows (64-bit)	android-studio-2020.3.1.22-windows.exe  Recommended	913 MiB	9a95e747121830b7a62f276438dd4df4390a4ccf785e09f226a9fb2ac0b576cf
	android-studio-2020.3.1.22-windows.zip  No .exe installer	922 MiB	41c5f8a17294e1fe81b45c66273878ea067cfb5c2fd9be7fac2f8f82ec5b1dc3
Mac (64-bit)	android-studio-2020.3.1.22-mac.dmg	950 MiB	42722b671fcda03e6e02b712828b5484e4af7563c5172b583252c9070c173d4b
Mac (64-bit, ARM)	android-studio-2020.3.1.22-mac_arm.zip	907 MiB	dc383ea7d7a6585451bced011f7db178068b9744319a9093cb05ac855b2c81ff
Linux (64-bit)	android-studio-2020.3.1.22-linux.tar.gz	935 MiB	4adb7b9876ed7a59ae12de5cbfe7a402e1c07be915a4a516a32fef1d30b47276
Chrome OS	android-studio-2020.3.1.22-cros.deb	812 MiB	71004dea7ca1d686284c6acc57a6c75c4e137c1e493ee005d0a2700e9134b6ab

Preparing "Install Android SDK Platform-Tools (revision: 31.0.3)".
Downloading https://dl.google.com/android/repository/platform-tools_r31.0.3-windows.zip
"Install Android SDK Platform-Tools (revision: 31.0.3)" ready.
Installing Android SDK Platform-Tools in C:UsersLindowsAppDataLocalAndroidSdkplatform-tools
"Install Android SDK Platform-Tools (revision: 31.0.3)" complete.
"Install Android SDK Platform-Tools (revision: 31.0.3)" finished.
Preparing "Install Android Emulator (revision: 30.8.4)".
Downloading https://dl.google.com/android/repository/emulator-windows_x64-7600983.zip
"Install Android Emulator (revision: 30.8.4)" ready.
Installing Android Emulator in C:UsersLindowsAppDataLocalAndroidSdkemulator
"Install Android Emulator (revision: 30.8.4)" complete.
"Install Android Emulator (revision: 30.8.4)" finished.
Preparing "Install SDK Patch Applier v4 (revision: 1)".
Downloading https://dl.google.com/android/repository/3534162-studio.sdk-patcher.zip
"Install SDK Patch Applier v4 (revision: 1)" ready.
Installing SDK Patch Applier v4 in C:UsersLindowsAppDataLocalAndroidSdkpatcherv4
"Install SDK Patch Applier v4 (revision: 1)" complete.
"Install SDK Patch Applier v4 (revision: 1)" finished.
Preparing "Install Android SDK Tools (revision: 26.1.1)".
Downloading https://dl.google.com/android/repository/sdk-tools-windows-4333796.zip
"Install Android SDK Tools (revision: 26.1.1)" ready.
Installing Android SDK Tools in C:UsersLindowsAppDataLocalAndroidSdk	ools
"Install Android SDK Tools (revision: 26.1.1)" complete.
"Install Android SDK Tools (revision: 26.1.1)" finished.
Preparing "Install Intel x86 Emulator Accelerator (HAXM installer) (revision: 7.6.5)".
Downloading https://dl.google.com/android/repository/extras/intel/haxm-windows_v7_6_5.zip
"Install Intel x86 Emulator Accelerator (HAXM installer) (revision: 7.6.5)" ready.
Installing Intel x86 Emulator Accelerator (HAXM installer) in C:UsersLindowsAppDataLocalAndroidSdkextrasintelHardware_Accelerated_Execution_Manager
"Install Intel x86 Emulator Accelerator (HAXM installer) (revision: 7.6.5)" complete.
"Install Intel x86 Emulator Accelerator (HAXM installer) (revision: 7.6.5)" finished.
Preparing "Install Android SDK Build-Tools 31 (revision: 31.0.0)".
Downloading https://dl.google.com/android/repository/09489e417c0a266f2862ddd82b4ac29a1b7af55e.build-tools_r31-windows.zip
"Install Android SDK Build-Tools 31 (revision: 31.0.0)" ready.
Installing Android SDK Build-Tools 31 in C:UsersLindowsAppDataLocalAndroidSdkuild-tools31.0.0
"Install Android SDK Build-Tools 31 (revision: 31.0.0)" complete.
"Install Android SDK Build-Tools 31 (revision: 31.0.0)" finished.
Preparing "Install Android SDK Platform 31 (revision: 1)".
Downloading https://dl.google.com/android/repository/platform-31_r01.zip
"Install Android SDK Platform 31 (revision: 1)" ready.
Installing Android SDK Platform 31 in C:UsersLindowsAppDataLocalAndroidSdkplatformsandroid-31
"Install Android SDK Platform 31 (revision: 1)" complete.
"Install Android SDK Platform 31 (revision: 1)" finished.
Parsing C:UsersLindowsAppDataLocalAndroidSdkuild-tools31.0.0package.xml
Parsing C:UsersLindowsAppDataLocalAndroidSdkemulatorpackage.xml
Parsing C:UsersLindowsAppDataLocalAndroidSdkextrasintelHardware_Accelerated_Execution_Managerpackage.xml
Parsing C:UsersLindowsAppDataLocalAndroidSdkpatcherv4package.xml
Parsing C:UsersLindowsAppDataLocalAndroidSdkplatform-toolspackage.xml
Parsing C:UsersLindowsAppDataLocalAndroidSdkplatformsandroid-31package.xml
Parsing C:UsersLindowsAppDataLocalAndroidSdk	oolspackage.xml
Android SDK is up to date.
Running Intel® HAXM installer
Intel HAXM installed successfully!

end