Chapter 7, Problem 7PE

Explanation of Solution

Program:

File name: “ThreeLetterAcronym.java”

//Import necessary header files

import java.util.Scanner;

//Define a class named ThreeLetterAcronym

public class ThreeLetterAcronym

{

    //Define main method

    public static void main(String[] args)

    {

        //Create an object for Scanner class

        Scanner input = new Scanner(System.in);

        //Read input from the user

        String sentence = input.nextLine();

        //Split sentence (with spaces) into words

        String[] words = sentence.split("\\s+");

        //Declare a variable and initialize the value

        int i = 0;

        //For loop to display 3 letter Upper case Acronym

        for...