Java network chat Applet

This applet simulates a network chat, in which the user chats with someone over a network. Here, there is no network. The partner is simulated by a thread that emits strings at random. The point of the simulation is to show how to use a separate thread for receiving...

Drawing Pad

A simple Drawing Pad on which the user can draw some lines and shaps by using the mouse. Java /******************************************************* * MYCPLUS Sample Code - https://www.mycplus.com * * * * This code is made available as a service to our * * visitors...

Testing of two components MirrorLabel – MirrorLabel

This applet tests two custom components, MirrorLabel and MirrorLabel . It also tests the validate() method. The user can click a button to change the text on the components in the applet. Clicking another button will validate the applet. This will cause components...

Double buffering in Swing – Java

An applet showing a red square that the user can drag with the mouse, on a background of lines. The user can drag the square off the applet and drop it. It will jump back to its starting point. This applet does uses double buffering, which is the default behavior in...

PostFix expression evaluator – Java

This program evaluates postfix expressions entered by the user. The expressions can use non-negative real nubmers and the operators +, -, *, /, and ^ (where ^ represents exponentiation). Numbers must begin with a digit. That is, you have to say 0.7 rather than just...

String Sorting

String Sorting demonstration. Java /******************************************************* * MYCPLUS Sample Code - https://www.mycplus.com * * * * This code is made available as a service to our * * visitors and is provided strictly for the * * purpose of...

Dynamic array of integers

An object of class DynamicArrayOfInt acts like an array with unlimited size. The method put(position,value) is used to store the value at the specifed position in the array. There is no pre-set limit on how large position can be, although for very large values there...