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#Simple android program in java install
#Simple android program in java android
#Simple android program in java code

The next dialog is Configure Launcher Icon, which is used for configuring the icon for the application.

Because we want to create a blank activity, click the Create Activity checkbox and then click the Next button. This feature allows you to configure the launcher icon for the application.

The Create Custom Launcher Icon checkbox is checked by default.

The default Theme assigned to the project is Holo Light with Dark Action Bar.

#Simple android program in java android

Select API 17: Android 4.2 (Jelly Bean) as the platform to compile the project. Select API 17: Android 4.2 (Jelly Bean) as the Target Platform, as we expect this to be the version commonly used by your target audience.

Select API 8: Android 2.2 (Froyo) from the Minimum Required SDK drop-down list, to indicate that the application requires at least API level 8 to run.

The location to store the Android project is specified in Project Location box. To make it a unique identifier, the Package Name assigned is com. The Module Name entry is assigned automatically by default, it's the same as the application name.

In the Application Name box, enter the name of the Android project.

In the New Project dialog, enter information for the new project, as shown in Figure 2.

Click the New Project icon to create a new Android project. The first screen that opens is a welcome screen, displaying icons such as New Project, Import Project, Open Project, and so on.

After the installation completes successfully, launch Android Studio.

#Simple android program in java install

Double-click the downloaded executable file to install Android Studio.

Assuming that the Java Development Kit (JDK) is installed on your machine, download Android Studio.

Now let's create the same application in Android. After the user types a name and presses Enter, the welcome message is displayed with the entered name, as shown in Figure 1.įigure 1 Output of the Java program Creating an Android Project Similar to the Java Program When the program is run, it asks the user to enter a name. The entered name is then displayed on the screen by statement #8. Statements #5 and #6 ask the user to enter a name that is then assigned to the string name.

Statement #4 defines a try.catch block to check for any errors that might have occurred while the reader entered the text. Statement #3 uses the istream reader to convert the data into string form. The entered text is stored in the form of Unicode characters. The reader will read from the standard input stream ( System.in) that is, from the keyboard. Statement #2 creates a reader called istream. In WelcomeMsg.java, statement #1 imports the packages required for input/output operations. InputStreamReader istream = new InputStreamReader(System.in) #2īufferedReader bufRead = new BufferedReader(istream) #3 For example, if the user enters the name "Kelly," the message, "Welcome Kelly!" appears on the screen. After entering the name, when the user presses Enter, a welcome message appears, including the name the user typed.

#Simple android program in java code

The code shown in Listing 1 is a simple Java program called WelcomeMsg.java that asks the user to enter a name. Learn More Buy Example: A Simple Java Program