How to run java code in notepad

Although Notepad cannot run Java code directly, it can be achieved by using other tools: using the command line compiler (javac) to compile the code and generate a bytecode file (filename.class). Use the Java interpreter (java) to interpret bytecode, execute the code and output the result.

Run Java code in Notepad

Notepad is a basic text editor that cannot run Java code directly. Other tools are required to run Java code, such as a Java compiler or a Java interpreter.

method:

1. Using the command line compiler (javac)

• Open a command prompt (Windows) or terminal (Mac/Linux).
• Navigate to the directory where the file containing the Java code resides.
• Compile Java files with the following command: javac filename.java
• This will generate a bytecode file named filename.class .

2. Using Java Interpreter (java)

• Open a command prompt or terminal.
• Run Java code with the following command: java filename
• This will directly interpret the Java code without compilation steps.

Notice:

• Make sure that the Java Runtime Environment (JRE) is installed on the computer.
• Make sure that the Java file syntax is correct and does not contain errors.
• The file extension must be .java and the bytecode file must be .class .

Example:

1. Compiled with javac :

 <code>javac HelloWorld.java</code>

2. Run with java :

 <code>java HelloWorld</code>

The above code will output the following:

 <code>Hello, World!</code>

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