Android Tutorials - Herong's Tutorial Examples - v3.05, by Herong Yang
Writing My First Java Program
This section provides a tutorial example on how to write, compile, and execute the first Java program with JDK 1.8.
When JDK is installed on your machine, it provides two commands for you to compile and run Java programs.
Let's try these commands with a very simple Java program.
First use NotePad to enter the following Java program into a file called Hello.java:
class Hello { public static void main(String[] a) { System.out.println("Hello world!"); } }
Then compile this program in a command window with the "javac" command:
C:\herong>"\Program Files\Java\jdk1.8.0_45\bin\javac.exe" Hello.java
To execute the program, use the java command:
C:\herong>"\Program Files\Java\jdk1.8.0_45\bin\java.exe" Hello Hello world!
Congratulations, you have successfully entered, compiled and executed your first Java program.
Table of Contents
►Installing JDK 1.8 on Windows System
Downloading and Installing JDK 1.8
►Writing My First Java Program
Setting JAVA_HOME Environment Variable
Installation of Android SDK R24 and Emulator
Installing Apache Ant 1.9 on Windows System
Developing First Android Application - HelloAndroid
Android Application Package (APK) Files
Android Debug Bridge (adb) Tool
AboutAndroid - Application to Retrieve System Information
android.app.Activity Class and Activity Lifecycle
View Objects and Layout Resource Files
Using "adb logcat" Command for Debugging
Build Process and Package File Content
Samsung Galaxy Tab 3 Mini Tablet
USB Debugging Applications on Samsung Tablet
USB Debugging Applications on LG-V905R Tablet