JAVA
Write a program that requests the user input a word, then prints every other letter of the word starting with the first letter.
Hint - you will need to use the substring method inside a loop to get at every other character in the String. You can use the length method on the String
to work out when this loop should end.
Sample run:
Input a word:
domain
dmi

Respuesta :

import java.util.Scanner;

public class JavaApplication42 {

   public static void main(String[] args) {

       Scanner scan = new Scanner(System.in);

       System.out.println("Input a word:");

       String word = scan.nextLine();

       for (int i = 0; i < word.length(); i+=2){

           System.out.print(word.substring(i,i+1));

           

       }

   }

   

}

I hope this helps!

The program is an illustration of loops.

Loops are used to carry out repetition operations; examples are the for-loop and the while-loop.

The program in Java, where comments are used to explain each line is as follows:

import java.util.*;

public class Main {

public static void main(String args[]) {

//This creates a Scanner object

Scanner input = new Scanner(System.in);

//This prompts user for input

System.out.print("Input a word: ");

//This gets input from the user

String userinput = input.nextLine();

//The following iterates through every other character of userinput  

      for(int i =0;i<userinput.length();i+=2) {

//This prints every other characters

          System.out.print(userinput.charAt(i));

}

  }

}

The above program is implemented using a for loop

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