Question

Write a program to input a sentence. Find and display the following:

1. Number of words present in the sentence
2. Number of letters present in the sentence

Assume that the sentence neither includes any digit nor any special character.

Answer 1

import java.util.*; 
public class SQ1 
{public static void main(String args[]) 
{Scanner in = new Scanner(System.in); 
String str; 
int word = (), letter = (); 
char ch; 
System.out.println("Enter the string"); 
str = in.nextLine(); 
str = str.trim(); // to remove any leading or trailing space 
str = " " + str; 

for (int i = 0; i < str.length(); i++)
{ ch = str.charAt(i);
if (ch == ' ') 
{if (Character.isLetter(str.char At(i + 1)) == true)
                // to prevent the counting of extra spaces in between words 
word++;         // number of spaces = number of words 
}
else if (ch! = ' ') 
letter++;
}
System.out.println("Number of words = " + word);
System.out.println("Number of letters = " + letter); 
}}