Here they left a program that I left to be done in java, the program is simple and consists of nothing but some data entries and exits.
In the program if nothing else asks for the name and number of student of a student and then makes entry of its 4 notes at the end [...]

PSPad is nu excellent editor who is now the day of testing since it was found on the website of Technology Daily. The editor is lightweight and easy to use, where you can create your code as php, html, javascript among others.
Some of the detailed characteristics are as follows by Knxdt

Use multiple environments [...]

This day I found a page in which you help to correct your mistakes in programming, I have not used the web but apparently even put your mail and paste the code from your program or what you are doing and they help you review the code and see how you can fix your mistake [...]