A "Hello, World!" program is usually the first program written by people who are beginners in writing codes. It is a very simple program which displays the message "Hello, World!". It is probably the simplest program to illustrate a few basic syntaxes of a programming language. This article covers the Java program to print "Hello World!".
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1. Algorithm for "Hello, World!"
1. Print "Hello, World!"
2. Pseudocode for "Hello, World!"
1. Procedure print():
2.
3. End Procedure
3. Time complexity for "Hello, World!"
Time Complexity: O(1)
4. Java Program & output for "Hello, World!"
Code has been copied
// declare a class public class HelloWorld { // The program begins with a call to main() function and // it prints "Hello World!" public static void main(String args[]) { System.out.print("Hello, World!"); } }
Output
Hello, World!