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Hello Name Greeting

beginner Programming Basics

Read one line with a name and print the greeting Hello, <name>! Example: for the name Asha print Hello, Asha!

Constraints

1 <= length of name <= 100

Examples

Input

Asha

Output

Hello, Asha!

Reading a line
String concatenation
Printing

Solutions

Best approachTime O(n)Space O(n)

We read a line of text, join it with the greeting using the + operator (string concatenation), and print it. Every language has its own way to print, but the idea is the same.

Same code works in Java810172125Basic features only, so nothing changes between versions.

/*
 * Problem : Print a greeting for a name.
 * Input   : One line with a name.
 * Output  : Hello, <name>!
 * Approach: Join the text and the name.
 * Time    : O(n)
 * Space   : O(n)
 * Java    : 8 or newer.
 */
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        // Step 1: Read one whole line of text. nextLine() also keeps the spaces inside the name.
        String name = new Scanner(System.in).nextLine();

        // Step 2: Join the text parts with + and print the result.
        System.out.println("Hello, " + name + "!");
    }
}

Hints (1)

How do you join two texts?