Hello Java Experts,

I need 3 small java program source code. Plzzzz mail me at these 3 program's code. This is for my little brother and I am really busy so cant manage time to complete them.Plzzzzzz help me...ASAP

Task 1

Collection, Inheritance, File Handling, Exceptions

A company has a text file which includes a list of its supplier’s details:

Company name

Company address

Company telephone numbers

Company web address



It is assumed that the company name is unique within the file, that is, a company name does not

occur more than once.



Create a Java program that:

• Reads the information from the text file and creates a TreeMap structure.

• Has the necessary methods for adding or deleting new records to this list.

• Displays the list of all the companies in alphabetical order.





Task 2

Applet, Class, Inheritance, GUI, Event Handling,

There is a requirement for a Java Applet to provide a simple drawing tool with the following

specification:

• To provide a drop down menu for shapes such as circle, rectangle or triangle.

• To provide a drop down menu for colours such as yellow, green or red.

• A user can use this menu to draw the shapes as needed and fill them with the required colour.

• A “clear” button is also needed which can be used to clear the screen for a fresh start.



Use Java to implement this specification.





Task 3

Class, Inheritance, Mutual Exclusion, Exception Handling

In a contrived car-manufacturing factory robots are cooperating in assembling a car. There are five

robots which share a common 10-slot stand. Two producer robots put each of the parts needed in

one of the empty slots in the stand. Three consumer robots take the parts from the stand as needed.

Two conditions are to be observed in sharing this common 10-slot stand between the five robots:

• A consumer robot cannot take a part out of any of the slots in the stand if all the slots are

empty.

• A producer robot cannot place a part in any of the slots if all the slots are full.



Use the Thread facility of Java to implement this specification.