Java 如何将字母从单词的第一个字母移动到单词的后面？然后在末尾添加“ay”
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How can I move a Letter from the first letter of a word to the back of the word?and then adding "ay" to the end
提问by
I'm doing a project of If and else,This project requires you to take a user input, and then move the first letter of the word they entered to the last letter of the word. The problem is I don't know what the last number of the user is.
我在做一个If and else的项目，这个项目需要你拿一个用户输入，然后把他们输入的单词的第一个字母移到单词的最后一个字母。问题是我不知道用户的最后一个号码是多少。
I want to use the substring method for this. I don't know how to move a letter from the beggining of the word to the last letter of the word , because I don't know what is the last letter of the word(the user can enter anything)
我想为此使用子字符串方法。我不知道如何将一个字母从单词的开头移动到单词的最后一个字母，因为我不知道单词的最后一个字母是什么（用户可以输入任何内容）
I started doing it but I have no progress at all, because I don't know what the last letter is of the users input.
我开始这样做，但我根本没有任何进展，因为我不知道用户输入的最后一个字母是什么。
import javax.swing.*;
public class PigLatinDriver {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
String word = JOptionPane.showInputDialog("Enter the word to be translated into pig Latin.");
boolean consonant =false;
If(word.substring(0)== "b");{
word.substring(0).replace("b"," ");
}
if(consonant==true){
}
//perform the logic to translate to piglatin
//Words that begin with a consonant move the first letter to the end and then add ay
// vowels just add ay
// The exception being when you use the word "Small" with an upper case, then you make no change.
String translation = "";
JOptionPane.showMessageDialog(null, translation);
}
private static void If(boolean b) {
// TODO Auto-generated method stub
}
}
采纳答案by CodingBird
you can simply concat the string using concat() method from String API. OR you can just simply use the the '+' operator for string.
您可以使用 String API 中的 concat() 方法简单地连接字符串。或者，您可以简单地将“+”运算符用于字符串。
Try this out:
试试这个：
Scanner sc = new Scanner(System.in);
String input = sc.nextLine(); //get input from user
char firstLetter = input.charAt(0); //get the first letter
input = input.substring(1); //remove the first letter from the input string
input = input + firstLetter + "ay"; //add first letter and "ay" to end of input string
:)
:)
