Write a program to accept a sentence which may be terminated by either '.', '?' or '!' only. The words may be separated by more than one blank space and are in UPPER CASE.
Perform the following tasks:
- Find the number of words beginning and ending with a vowel.
- Place the words which begin and end with a vowel at the beginning, followed by the remaining words as they occur in the sentence.
Test your program with the sample data and some random data:
Example 1
INPUT: ANAMIKA AND SUSAN ARE NEVER GOING TO QUARREL ANYMORE.
OUTPUT: NUMBER OF WORDS BEGINNING AND ENDING WITH A VOWEL = 3
ANAMIKA ARE ANYMORE AND SUSAN NEVER GOING TO QUARREL
Example 2
INPUT: YOU MUST BE A BETTER PERSON TOMORROW THAN YOU ARE TODAY.
OUTPUT: NUMBER OF WORDS BEGINNING AND ENDING WITH A VOWEL = 2
A ARE YOU MUST AIM TO BE BETTER PERSON TOMORROW THAN YOU TODAY
Example 3
INPUT: LOOK BEFORE YOU LEAP.
OUTPUT: NUMBER OF WORDS BEGINNING AND ENDING WITH A VOWEL = 0
LOOK BEFORE YOU LEAP.
Example 4
INPUT: HOW ARE YOU@
OUTPUT: INVALID INPUT
import java.io.*;
class ISCprac2016Q03
{
public static void main(String arg[])throws IOException
{
int l,i,n, p, nowwv;
boolean flag = true;
char ch, fc, lc, lastChar;
String str, prefix = "", suffix = "";
BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter a sentence : ");
str = br.readLine();
l = str.length();
lastChar = str.charAt(l-1); // Extract the last character
if(lastChar != '.' && lastChar != '?' && lastChar != '!')
System.out.println("INVALID INPUT");
else{
//Pointer to the first character of each word
p = 0;
// store no of words starting and ending with a vowel
nowwv = 0;
for(i = 0; i < l; i++){
ch = str.charAt(i);
if(ch == ' ' || ch == '?' || ch == '!' || ch == '.'){
//Check if first and last character of the word is a vowel
if(isVowel(str.charAt(p)) && isVowel(str.charAt(i-1))){
//Add words starting and ending with a vowel
prefix += str.substring(p,i) + " ";
nowwv++;
}else{
//Add words that doesn't start and end with a vowel
suffix += str.substring(p,i) + " ";
}
p = i + 1;
}//if
}//for loop
System.out.println("NUMBER OF WORDS BEGINNING AND ENDING WITH A VOWEL = " + nowwv);
System.out.println(prefix + suffix);
}//else
}//end of main
//Return true if 'ch' is a vowel else returns false
private static boolean isVowel(char ch){
if(ch == 'A' || ch == 'E' || ch == 'I' || ch == 'O' || ch == 'U')
return true;
else
return false;
}//end of isVowel
}//end of class
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