Question

问题：

提示用户输入字符串并检查它是否为复数（以“s”或“es”结尾）。输出单词的单数形式。如果用户输入单数字，只需输出单词。

示例：

输入复数词（以s或es结尾）：房屋
单词的简单版本：House

我怎么打印出没有＆＃34; es＆＃34;？

的单词？

这是我到目前为止所尝试的内容：

System.out.println("Input a plural word: ");
String pluralWord = kb.nextLine();
if (pluralWord.substring(pluralWord.length()-2).equals("es") || pluralWord.substring(pluralWord.length()-2).equals("s"))
    System.out.println("Singular version of the word:"+ );

Answer 1

System.out.println("Input a plural word: ");
String pluralWord = kb.nextLine();

if(pluralWord.substring(pluralWord.length()-2).equals("es")){
   System.out.println("Singular version of the word:"+ pluralWord.substring(0, pluralWord.length()-2));
}else if(pluralWord.substring(pluralWord.length()-1).equals("s")){
   System.out.println("Singular version of the word:"+ pluralWord.substring(0, pluralWord.length()-1));
}else{
   System.out.println("Singular version of the word:"+ pluralWord);
}

Answer 2

您可以将Format String Syntax与printf一起使用。此外，String.endsWith(String)然后substring(0, len - 2)和/或substring(0, len - 1)喜欢

public static void main(String[] args) {
    Scanner kb = new Scanner(System.in);
    System.out.println("Input a word: ");
    String pluralWord = kb.nextLine();
    if (pluralWord.endsWith("es")) {
        System.out.printf("Plural %s, Singular %s%n", pluralWord,
                pluralWord.substring(0, pluralWord.length() - 2));
    } else if (pluralWord.endsWith("s")) {
        System.out.printf("Plural %s, Singular %s%n", pluralWord,
                pluralWord.substring(0, pluralWord.length() - 1));
    } else {
        System.out.printf("Singular %s%n", pluralWord);         
    }
}

Answer 3

System.out.println("Input a plural word: ");
String pluralWord = kb.nextLine();


if(pluralWord.length() > 1 && plurpluralWord.substring(pluralWord.length()- 2).equals("es") {
        System.out.println("Singular version of the word:"+
         pluralWord.substring(0 , pluralWord.length()-2));
}else if (pluralWord.length() > 0  && pluralWord.substring(pluralWord.length()- 1).equals("s")){
      System.out.println("Singular version of the word:"+ pluralWord.substring(0 , pluralWord.length()-1));
}else{
      System.out.println("Singular version of the word:"+ pluralWord);
}

如何删除字符串的最后两个字母？

3 个答案: