hello world java

• A "Hello, World!" program is generally a computer program that outputs or displays the message "Hello, World!".
• This program is very simple to write in many programming languages, and is often used to illustrate a language's basic syntax.
• Let's explore how Java "Hello, World!" program works.

Java Hello World

			
					// This is a simple Java Hello World program Example.

class Example {
    public static void main(String[] args) {
        System.out.println("Hello, World!");
    }
}

			
	

			
	
			

		
	

			
					Hello, World!

			
	

			
	
			

		
	

hello world java code

			
					// This is a simple Java Hello World program Example.

			
	

			
	
			

		
	

• This is a comment.
• Like other programming languages, Java lets you enter a remark into a program’s source file.
• The contents of a comment are ignored by the compiler.
• Its used to describes or explains the operation of the program.

			
					class Example {...}

			
	

			
	
			

		
	

• In Java, every application begins with a class definition.
• In the program, Example is the name of the class.
• The class definition begins with the opening curly brace ({) and ends with the closing curly brace (}).

java hello world program

			
					public static void main(String[] args) {
...........
}

			
	

			
	
			

		
	

hello world in java

• This line begins the main() method.In general, Java applications begin execution by calling main().
• The public keyword is an access modifier.
  • An access modifier determines how other parts of the program can access the members of the class.
• As stated, main() is the method called when a Java application begins.
• In main() there is only one parameter, String[] args, which declares a parameter named args. This is an array of objects of type String.