java - 我试图找到元音然后添加它们，但我这样做对吗？

Question

Idk 如果我做对了.. 我只是想知道如何将元音加在一起形成三个，因为我的名字是 Daniel 3 total vowels 但是当我添加其他名字时它不起作用。

import java.util.Scanner;


public class Pratclass {

    public static void main(String[] args) 
    {
        Scanner std= new Scanner(System.in);
        String string1;
        System.out.println("What is your name");
        string1= std.nextLine();

        int count= 0;
        int vowels=0;

        for(String retval: string1.split(""))
        {
            for(int i=0; i < retval.length(); i++)
            {
                char c= retval.charAt(i); 
                if(c== 'a' || c== 'e' || c== 'i' || c== 'o'|| c== 'u') 
                {
                    vowels++;
                }
                else
                {
                    count++;
                }
                System.out.println(retval.substring(0,1) + retval.substring(1) + vowels);
                vowels=0;
                }
        }
        int total=vowels++;

        total=(total + vowels++ + vowels);      < How can I count the vowels 
        System.out.println();

        System.out.println(total);

    }   
}

Answer 1

你也可以用这个...

import java.util.Scanner;

public class Pratclass1 {

public static void main(String[] args) {
Scanner std= new Scanner(System.in);
String string1;
System.out.print("What is your name :");
string1= std.nextLine();

int count= 0;
int vowels=0;

char[] ar = new char[string1.length()];

for(int i = 0; i < ar.length; i++) {
    ar[i] = string1.charAt(i);
    if(ar[i] == 'a' || ar[i] == 'e' || ar[i] == 'i' || ar[i] == 'o'|| ar[i] == 'u') {
        vowels++;
    } else {
        count++;
    }
}

int total=vowels;
System.out.println();
System.out.println(total);
}