如何使用 Java 在给定字符串中找到元音?
可以使用 String 中的 charAt() 方法 来读取字符。要找到给定字符串中的元音,你需要将其中的每个字符与元音字母进行比较。
示例
public class FindingVowels { public static void main(String args[]) { String str = new String("Hi Welcome to Tutorialspoint"); for(int i=0; i<str.length(); i++) { if(str.charAt(i) == 'a'|| str.charAt(i) == 'e'|| str.charAt(i) == 'i' || str.charAt(i) == 'o' || str.charAt(i) == 'u') { System.out.println("Given string contains "+str.charAt(i)+" at the index "+i); } } } }
输出
Given string contains i at the index 1 Given string contains e at the index 4 Given string contains o at the index 7 Given string contains e at the index 9 Given string contains o at the index 12 Given string contains u at the index 15 Given string contains o at the index 17 Given string contains i at the index 19 Given string contains a at the index 20 Given string contains o at the index 24 Given string contains i at the index 25
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