Explain significance of init() & destroy( ) method of applet, Computer Engineering

Assignment Help:

Explain the significance of init() and destroy( ) methods of an applet? Also explain two ways of invoking an applet.

The init( ) method is utilized for fundamental initialization in the applet. This is executed only once throughout the life time of the applet. It is the first method to be invoked while applet is started.

The destroy( ) method is utilized to clear the space from the memory while applet is stopped final ly.

Two ways are there to invoke an applet

  • Executing the applet inside a java compatible web browser or
  • By using an Applet viewer

In a web browser, to execute an applet a short HTML text file is written.

The HTML file to execute SimpleApplet is as follows:

< applet code = "SimpleApplet" width =200 height =60>

The height and width specifies the dimensions of the display area utilized.

To execute SimpleApplet with an applet viewer we will execute HTML file demonstrated above. For illustration if preceding HTML file is termed as app.HTML then the following command will execute a SimpleApplet:

C: \< appletviewer app.HTML


Related Discussions:- Explain significance of init() & destroy( ) method of applet

Capacity and performance of storage - computer architecture, Capacity: ...

Capacity: Raw capacity Total amount of stored information that a medium or storage device can hold is expressed as a quantity of bytes and bits (for example 10.4 megabyte

Explain loop-invariant code motion, Explain briefly Loop-invariant code ...

Explain briefly Loop-invariant code motion of the commonly used code optimization techniques. Loop-invariant code motion If a quantity is calculated inside a loop duri

Advantages of using the electronic mail system, Question : a) E-mail is...

Question : a) E-mail is a common feature nowadays in IT. What does it stands for and what is it used for? b) Briefly describe four advantages of using the electronic mail s

Reference table and a reference field, A field containing currency amounts ...

A field containing currency amounts (data type CURR) must be assigned to a reference table and a reference field. Explain. As a reference table, a system having all the valid

Aussie wine tours awt, Business Narrative Aussie Wine Tours (AWT) condu...

Business Narrative Aussie Wine Tours (AWT) conduct tours of the wineries of Victoria's Yarra Valley wine region. The tours take place on the last Sunday of each month. Currentl

Engineering applications, Engineering Applications A few of the enginee...

Engineering Applications A few of the engineering applications are: Airflow circulation over aircraft machinery, Simulations of simulated ecosystems. Airflow c

Differences b/w user level and kernel supported threads, What are the diffe...

What are the differences between user level threads and kernel supported threads? A thread, sometimes termed a lightweight process (LWP), is a fundamental unit of CPU utilizati

Explain about two-pass assembler, Q. Explain about Two-pass assembler? ...

Q. Explain about Two-pass assembler? Assemblers usually make two or more passes through a source program in order to resolve forward references in a program. A forward referenc

What are null values, What are null values? If the value of a field in ...

What are null values? If the value of a field in a table is indeterminate or unknown, it is known as a null value.

Explain the design procedure for flip flop, Explain the Design Procedure fo...

Explain the Design Procedure for Flip Flop? The design procedure as follows. 1) Acquire the clear description of the desired flip flop X. 2) Acquire the present state- next

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd