How do you write a Java program?
Step by Step Guide to Writing a Java Program
Writing a Java program involves several steps:
Choose a text editor or Integrated Development Environment (IDE) to write your code in. Some popular Java IDEs include Eclipse, IntelliJ IDEA, and NetBeans.
Create a new file and save it with a .java extension. This will be your Java source file.
Write the Java code for your program. A simple Java program might look like this:
public class HelloWorld {
public static void main(String[] args) {
System.out.println("Hello, World");
}
}
Compile the Java code by running the javac
command in a terminal or command prompt and passing in the name of the source file. For example:
Copy codejavac HelloWorld.java
- Run the compiled code by running the
java
command and passing in the name of the class that contains themain
method. For example:
Copy codejava HelloWorld
This will output the text "Hello, World" to the console.
These are the basic steps to write and run a Java program. Of course, in practice, Java programs can be much more complex, but the basic process remains the same.