to peter

Sort.java

import java.util.Scanner;
public class Sort{
	private int []letterArray;

	private void sortLetter(int length) {
		for (int i = 0;i < length-1;i++){
			System.out.printf("%d ",letterArray[i]); 
			letterArray[i] = (letterArray[i] + letterArray[i+1]) % 10;
		}
		System.out.printf("%d \n",letterArray[length-1]);
		if (length == 3 && letterArray[0] == 1 && letterArray[1] ==0 && letterArray[2] == 0){
			return;
		}else if (length == 2){
			return;
		}else{		
			this.sortLetter(length-1);
		}
	}
	
	private void getInput(){
		Scanner scan = new Scanner(System.in);
		System.out.print("あなたの名前の文字数は？");
		int firstNameLen = scan.nextInt();
		System.out.print("相手の名前の文字数は？");
		int secondNameLen = scan.nextInt();
		this.letterArray = new int[firstNameLen+secondNameLen];
		
		System.out.println("あなたの名前の数値を１つずつ入力してください");
		int index = 0;
		for(int i = 0;i<this.letterArray.length;i++){
			if (i == firstNameLen){
				System.out.println("相手の名前の数値を１つずつ入力してください");
				index = 0;
			}
			System.out.print(index+1+"文字目の数値：");
			index++;
			this.letterArray[i]=scan.nextInt();			
        	}
	}
	
	public static void main(String[] args) {
		Sort s = new Sort();
		s.getInput();
		s.sortLetter(s.letterArray.length);
	}
}