How to Compile and Run Java Program by Notepad

Notepad++ is a free text editor and source code editor. It is very small, just 7.6MB. This article instructs you in how to compile and run Java programs using Notepad++. It is an effective method to compile and run your Java program easily and at any moment, without having to resort to using complex software like Eclipse or NetBeans.

Steps

1

Create a class named as Calculator. This is just an example. You can create any class you want to create.
2

Save class Calculator as a Java file. Notice that it must be in Java format. Otherwise, it will fail to compile.
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3

Name it as Calculator.java on the desktop.
Alternatively, you can save it anywhere you want.
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4

Open Plugins in the menu bar.
Then choose "Show Plugin Manager".
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5

Find Nppexec and click it in the options list-box.
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6

Restart Notepad according to the instructions provided by the popup.
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7

In the menu bar, choose Plugin->Nppexec->Execute.
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8
In the command line, type:

cd C:\Users\hhh\Desktop\Calculator.java, javac Calculator, java Calculator, and press enter after each command.
- The format means cd $(CURRENT_DIRECTORY) , javac $(FILE_NAME) ,java $(NAME_PART).
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9

Click OK , the program will compile and run.You can see the demonstration. It is a cool calculator, right?

how to run java file by notepad