🚀 Programming Example
Question 9
Learn this program step-by-step with algorithm, source code, output and detailed explanation.
Write a program to input a string and convert it into uppercase and print the pair of vowels and number of pair of vowels occurring in the string.
Example:
Input:
"BEAUTIFUL BEAUTIES "
Output :
Pair of vowels: EA, AU, EA, AU, IE
No. of pair of vowels: 5
import java.util.Scanner;
public class RAnsariVowelPair
{
static boolean isVowel(char ch) {
ch = Character.toUpperCase(ch);
if (ch == 'A' ||
ch == 'E' ||
ch == 'I' ||
ch == 'O' ||
ch == 'U')
return true;
return false;
}
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.println("Enter the sentence:");
String str = in.nextLine();
str = str.toUpperCase();
int count = 0;
System.out.print("Pair of vowels: ");
for (int i = 0; i < str.length() - 1; i++) {
if (isVowel(str.charAt(i))
&& isVowel(str.charAt(i + 1))) {
count++;
System.out.print(str.charAt(i));
System.out.print(str.charAt(i+1) + " ");
}
}
System.out.print("\nNo. of pair of vowels: " + count);
}
}
First understand the algorithm carefully. Then study the program line-by-line and compare it with the output. Finally, review the explanation section to strengthen your logic and programming understanding.
Rewrite the program without looking at the code. Modify values, conditions or logic and run it again. This helps improve confidence and strengthens coding skills much faster.