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Hello World Program in Java
Let us look at a simple code that will print the words Hello World.
Example
public class MyFirstJavaProgram { /* This is my first java program. * This will print 'Hello World' as the output */ public static void main(String []args) { System.out.println("Hello World"); // prints Hello World } }
Let's look at how to save the file, compile, and run the program. Please follow the subsequent steps −
Open notepad and add the code as above.
Save the file as − MyFirstJavaProgram.java.
Open a command prompt window and go to the directory where you saved the class. Assume it's C:\.
Type 'javac MyFirstJavaProgram.java' and press enter to compile your code. If there are no errors in your code, the command prompt will take you to the next line (Assumption − The path variable is set).
Now, type ' java MyFirstJavaProgram ' to run your program.
You will be able to see ' Hello World ' printed on the window.
Output
C:\> javac MyFirstJavaProgram.java C:\> java MyFirstJavaProgram Hello World
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