- Java Basic Programs
- Java Programming Examples
- Java Print Hello World
- Java Get Input from User
- Java Print Integer
- Java Add two Numbers
- Java Check Even or Odd
- Java Check Prime or Not
- Java Check Alphabet or Not
- Java Check Vowel or Not
- Check Reverse equal Original
- Java Fahrenheit to Celsius
- Java Celsius to Fahrenheit
- Java Perfect Number Program
- Java Find Quotient Remainder
- Java Days to Seconds
- Java Count Digits in Number
- Java Binary Number Addition
- Java Discount Program
- Java Compute Courier Charge
- Java Find Telephone Bill
- Java Print ASCII Values
- Java Check Palindrome or Not
- Java Check Armstrong or Not
- Generate Armstrong Numbers
- Add two Numbers using Pointers
- Java Mathematical Programs
- Add Subtract Multiply & Divide
- Java Make Calculator
- Java Add Digits of Number
- Java Check Leap Year or Not
- Java Check Divisibility
- Java Find Simple Interest
- Java Find Compound Interest
- Java Print Fibonacci Series
- Java Find nCr nPr
- Calculate Average & Percentage
- Java Calculate Arithmetic Mean
- Java Calculate Student Grade
- Java Print Table of Number
- Java Print Prime Numbers
- Java Add n Numbers
- Java Interchange two Numbers
- Java Reverse Numbers
- Java Swap two Numbers
- Count Positive Negative & Zero
- Find Largest of two Numbers
- Find Largest of three Numbers
- Java Find Factorial of Number
- Java Find HCF & LCM
- Area & Perimeter of Square
- Area & Perimeter of Rectangle
- Area & Circumference of Circle
- Java Conversion Programs
- Java Decimal to Binary
- Java Decimal to Octal
- Java Decimal to Hexadecimal
- Java Binary to Decimal
- Java Binary to Octal
- Java Binary to Hexadecimal
- Java Octal to Decimal
- Java Octal to Binary
- Java Octal to Hexadecimal
- Java Hexadecimal to Decimal
- Java Hexadecimal to Binary
- Java Hexadecimal to Octal
- Java Pattern Programs
- Java Pattern of Stars
- Java Pattern of Alphabets
- Java Pattern of Numbers
- Java Pyramid of Stars
- Java Pyramid of Alphabets
- Java Pyramid of Numbers
- Java Print Diamond Pattern
- Java Print Floyd Triangle
- Java Print Pascal Triangle
- Java Array Programs
- One Dimensional Array Program
- Java Linear Search
- Java Binary Search
- Find Largest Element in Array
- Find Smallest Element in Array
- Java Reverse Array
- Insert Element in Array
- Delete Element from Array
- Java Merge two Array
- Java Bubble Sort
- Java Selection Sort
- Java Insertion Sort
- Java Find Common Elements
- Java Count Even/Odd Number
- Two Dimensional Array Program
- Java Add two Matrices
- Java Subtract two Matrices
- Java Transpose Matrix
- Multiply two Matrices
- Three Dimension Array Program
- Java String Programs
- Java Print String
- Find Length of String
- Java Compare two String
- Java Copy String
- Java Concatenate String
- Java Reverse String
- Delete Vowels from String
- Delete Words from Sentence
- Find Occurrence of a Character
- Java Find Occurrence of a Word
- Occurrence of Each Character
- Java Occurrence of Each Word
- Java Count Repeated Characters
- Java Count Repeated Words
- Java Capitalize Each Word
- Java Count Vowels/Consonants
- Java Extract Numbers
- Java Count Word in String
- Remove Spaces from String
- Java Sort a String
- Java Uppercase to Lowercase
- Java Lowercase to Uppercase
- Java Swap two Strings
- Java Check Anagram or Not
- Java Check Balance Parentheses
- Java Check Password Strength
- Java File Programs
- Java Read File
- Java Write to File
- Read & Display File Content
- Java Copy File
- Java Append Text to File
- Java Merge two File
- List files in Directory
- Java Delete File
- Java Miscellaneous Programs
- Generate Random Numbers
- Java Print Time & Date
- Java Get IP Address
- Java Shutdown Computer
- Java Programming Tutorial
- Java Tutorial
Java Program to Print Hello World
This article covers a program in Java that prints Hello, World. To print Hello, World on the output screen in Java programming, just place the string "Hello, World" inside System.out.println() as shown in the program given below.
Print Hello World in Java
The question is, write a Java program to print Hello, World. The program given below is its answer:
public class CodesCracker { public static void main(String[] args) { System.out.println("Hello, World"); } }
When the above Java Program is compiled and executed, it will produce the following output:
Print Hello World in Java 10 Times using for Loop
This program prints Hello, World 10 number of times, using for loop.
public class CodesCracker { public static void main(String[] args) { for(int i=0; i<10; i++) System.out.println("Hello, World"); } }
The snapshot given below shows the sample output produced by above Java program on printing of Hello World 10 times:
Print Hello World in Java 10 Times using while Loop
This is the same program as of previous, but created using while loop, instead of for.
public class CodesCracker { public static void main(String[] args) { int i=0; while(i<10) { System.out.println("Hello, World"); i++; } } }
This program produces exactly same output as of previous program. Above program can also be created in this way:
public class CodesCracker { public static void main(String[] args) { int i=0; while(i++<10) System.out.println("Hello, World"); } }
That is, in the code:
i++<10
the current value of i gets used, then incremented, as in i++, the ++ is the post increment operator.
Print Hello World n Times
Now this program prints n number of times, the string Hello, World. For example, if the value of n is 100, then this program prints 100 Hello, World. The value of n is received by user at run-time of the program, using Scanner class.
import java.util.Scanner; public class CodesCracker { public static void main(String[] args) { int n; Scanner s = new Scanner(System.in); System.out.print("Enter the value of n: "); n = s.nextInt(); for(int i=0; i<n; i++) System.out.println("Hello, World"); } }
The snapshot given below shows the sample run of above program with user input 6 as value of n to print 6 Hello, World
Print Hello World in Java using Function
To print Hello, World in Java using user-defined function, use following program:
public class CodesCracker { public static void main(String[] args) { HelloWorld(); } public static void HelloWorld() { System.out.println("Hello, World"); } }
The output of this program is:
Hello, World
Print Hello World in Java using Class
To print Hello, World in Java using class and object, use following program:
public class CodesCracker { public static void main(String[] args) { CodesCracker cc = new CodesCracker(); cc.HelloWorld(); } public static void HelloWorld() { System.out.println("Hello, World"); } }
This program produces exactly same output as of previous program.
Print Hello World in Java using Constructor
This is the last program of this article, created using a constructor. Constructor gets automatically called after the creation of an object of the class, in which the constructor is defined.
public class CodesCracker { CodesCracker() { System.out.println("Hello, World"); } public static void main(String[] args) { CodesCracker cc = new CodesCracker(); } }
Same Program in Other Languages
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