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Java, one of the most compatible program over the world. Mainly there two types of java programs, Application program and applet program.

An applet is a small application designed to be transmitted over the Internet and executed by a Java-compatible Web browser. Applets are event driven programs. Java applet programs are different from java application programs. Click to Learn how to build and run a Java application program. 

Now let us see how to build and run a Java applet program.

Open any text editor like notepad and type below code to print ‘Hello’ as an applet.

Make and Run a Java Applet Program

Where,

  • A = imported for applet programs. 
  • B = AWT is stands for Abstract Window Toolkit.Contains many tool pack like graphics
  • C = Paint function is to perform different graphics activities. 
  • D = to print a string. 
  • E = String you want to print.
  • F = X coordinate of your string in applet window.
  • G = Y coordinate of your string in applet window. 
  • H = ‘test’ is your class name is must be equal to your program name.

Now save your file with .java extension. (Program name must be equal to class name)

► Compile your java program. (Same as compiling of java application program)

Method to run a Java applet program is not similar to method to run a java application program.

There are two methods to run a Java applet program.

    ♦ Using Java compatible web browser

    ♦ Using Applet Viewer included with your JDK. 

Using Java compatible web browser

► Open any text editor like notepad.

► Type below code

<applet code = "test" width = 400 height = 300> </applet>

[Here width is the width of your output applet window size and height is the height of your output applet window size.]

►Save as a .html file in location of your java file.

     ♦If you want to save your html file in different location,

        Change above code to:

<applet code = “your location\test” width = 400 height = 300> </applet>

                  Example:

<applet code = “D:\my java files\test” width = 400 height = 300> </applet>

 After successful save, open your html file with any Java compatible web browser.

 Now you can see your applet on the browser.

Make and Run a Java Applet Program

If your browser is not compatible with Java, download java form here.

Using Applet Viewer

 Normally your JDK already contain an Applet Viewer for viewing applets (Search in your jdk folder). For using this method, add this line of code to your java program just before of your class.

/* <applet code = “test” width = 300 height = 300> </applet> */

Now, totally your program should be like this:

 import java.applet.*;import java.awt.*;
 /* <applet code = "test" width = 300 height = 300> </applet> */
public class test extends Applet
{
  public void paint(Graphics g)    
  {       
   g.drawString("Hello",123,125);     
  }
} 

► Save again.

► Compile your Program.

After successful compilation,  type:  appletviewer test.java  to run your applet.

Make and Run a Java Applet Program

 Now you can see the applet on the Java Applet Viewer.

Make and Run a Java Applet Program

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