Write a program to accept a word and convert it into lower case, if it is in upper case. Display the new word by replacing only the vowels with the letter following it.

Sample Input  : computer
Sample Output :  cpmpvtfr

import java.util.Scanner;
public class VowelReplace_Tridib
{
public static void main(String args[]) {
Scanner in = new Scanner(System.in);
System.out.print("Enter a word: ");
String str = in.nextLine();
str = str.toLowerCase();
String newStr = "";
int len = str.length();
for (int i = 0; i < len; i++) {
char ch = str.charAt(i);
if (str.charAt(i) == 'a' ||
str.charAt(i) == 'e' ||
str.charAt(i) == 'i' ||
str.charAt(i) == 'o' ||
str.charAt(i) == 'u') {
char nextChar = (char)(ch + 1);
newStr = newStr + nextChar;
}
else {
newStr = newStr + ch;
}
}
System.out.println(newStr);
}
}

Output: