Question

using java

Answer 1

Using for loop :

Code Snippet :

Output :

Raw Code :

import java.util.*; //Importing necessary packages
public class rev_words_for{
   public static void main(String[] args) { //main method
       Scanner sc = new Scanner(System.in); //Creation of Scanner object
       String str = sc.nextLine(); //Reading line from console
       String[] arr = str.split(" "); //Converting the string to String Array using delimiter space " "
       for(int i = arr.length- 1;i>=0;i--){ //Iterating from arr.length - 1 to 0 as we need to reverse words
           System.out.print(arr[i] + " "); //Printing words space in between them
       }
       System.out.println(); //New line
   }
}

Using while loop :

Code Snippet :

Output :

Raw Code :

import java.util.*; //Importing necessary packages
public class rev_array_while{
   public static void main(String[] args) { //main method
       Scanner sc = new Scanner(System.in); //Creation of Scanner object
       String str = sc.nextLine(); //Reading line from console
       String[] arr = str.split(" "); //Converting the string to String Array using delimiter space " "
       int i = arr.length-1; //Indexing starts from 0 as we need to iterate from backwards the last index is arr.length - 1
       while(i>=0){ //Iterate until i is greater than or equal to 0
           System.out.print(arr[i] + " "); //printing words with space in between
           i--; //Decrement i
       }
       System.out.println(); //printing new line
   }
}

Please do vote. :)