java - java打印相同行和数组的方法问题

Question

我必须创建一个程序，接受用户int输入并以文字输出int。示例:如果输入 101，则程序输出“ONE HUNDRED AND ONE”。我也不知道如何打印 2 位数字，例如 54、34、69 等。

import java.util.Scanner;


public class rough{
public static void main(String args[]){
            int number = 0;
            Scanner scanner = new Scanner(System.in);
            System.out.print("Please type a number between 0 and 999 OR type -1 to exit:  ");
            number = scanner.nextInt();
            while(number!=-1){
                if(number>=0 && number<=999){
                    if(number==0){
                        System.out.print("ZERO");
                    } else if(number==100||number==200||number==300||number==400||number==500||number==600||number==700||number==800||number==900){
                           hundred(number);
                    }else if(number >=1 && number <=19){
                           from1To19(number);
                    }else if(number==20||number==30||number==40||number==50||number==60||number==70||number==80||number==90){
                           tens(number);
                    }else if(number>=101){
                           From101(number);


                    }

                } else{
                    System.out.print("NUMBER OUT OF RANGE");
                }
                System.out.print("\nPlease type a number between 0 and 999 OR type -1 to exit:  ");
                number = scanner.nextInt();
            }
        }



        public static void hundred(int num){
        String HUNDREDS[] = {" ", "ONE HUNDRED", "TWO HUNDRED", "THREE HUNDRED", "FOUR HUNDRED", "FIVE HUNDRED", "SIX HUNDRED", "SEVEN HUNDRED", "EIGHT HUNDRED", "NINE HUNDRED"};
        if(num>=100){
        int ArrayOrder = num/100;
        System.out.println(HUNDREDS[ArrayOrder]);
        }else{
         System.out.println(HUNDREDS[num]);
      }
    }

    public static void tens(int num){
    String TENS[] = {" ", " ", " TWENTY", " THIRTY", " FOURTY", " FIFTY", " SIXTY", " SEVENTY", " EIGHTY", " NINETY"};
    if(num >=20){
    int ArrayOrder = num/10;
    System.out.println(TENS[ArrayOrder]);
    }else{
    System.out.println(TENS[num]);
    }
    }

    public static void from1To19(int num){
    String ONES[] = {" ", " ONE", " TWO", " THREE", " FOUR", " FIVE", " SIX", " SEVEN", " EIGHT", " NINE", " TEN", " ELEVEN", " TWELVE", " THIRTEEN", " FOURTEEN", " FIFTEEN", " SIXTEEN", " SEVENTEEN", " EIGHTEEN", " NINETEEN"};
    System.out.println(ONES[num]);
    }


    public static void From101(int num){
        int first = num%10;//last number of ###
        num = num;//##
        int second = num%10;//last number of ##
        num = num;//#
        hundred(num); tens(second); from1To19(first);

    }  
    }

所以我的问题是:1.我想让From101中的3个方法在同一行上打印。

如果您输入 678 或 445。我会得到:

六百八十八

而不是六百七十八。

Answer 1

我稍微修改了你的代码，为 towDigitNumber() 添加了新方法您必须删除 if(number >=1 && number <=19) 上的 if 条件并设置新条件来管理两位数字，即 if(number >=1 && number<=99)

修改代码:我在我所做的更改处添加了注释。

package com.org.test;
import java.util.Scanner;


public class rough{
public static void main(String args[]){
            int number = 0;
            Scanner scanner = new Scanner(System.in);
            System.out.print("Please type a number between 0 and 999 OR type -1 to exit:  ");
            number = scanner.nextInt();
            while(number!=-1){
                if(number>=0 && number<=999){
                    if(number==0){
                        System.out.print("ZERO");
                    } else if(number==100||number==200||number==300||number==400||number==500||number==600||number==700||number==800||number==900){
                           hundred(number);
                    }else if(number==20||number==30||number==40||number==50||number==60||number==70||number==80||number==90){
                           tens(number);
                    }else if(number>=101){
                           From101(number);
                    }else if(number >=1 && number<=99){ // checking for numbers which are less then 99.
                        if(number >=1 && number <=19){
                            from1To19(number);
                        }else{
                            twoDigitNumber(number);  // added new method that call two digit number 
                        }
                    }

                } else{
                    System.out.print("NUMBER OUT OF RANGE");
                }
                System.out.print("\nPlease type a number between 0 and 999 OR type -1 to exit:  ");
                number = scanner.nextInt();
            }
        }



        public static void hundred(int num){
        String HUNDREDS[] = {" ", "ONE HUNDRED", "TWO HUNDRED", "THREE HUNDRED", "FOUR HUNDRED", "FIVE HUNDRED", "SIX HUNDRED", "SEVEN HUNDRED", "EIGHT HUNDRED", "NINE HUNDRED"};
        if(num>=100){
        int ArrayOrder = num/100;
        System.out.print(HUNDREDS[ArrayOrder]);  // add print statement not println
        }else{
         System.out.print(HUNDREDS[num]);  // add print statement not println
      }
    }

    public static void tens(int num){
    String TENS[] = {" ", " ", " TWENTY", " THIRTY", " FOURTY", " FIFTY", " SIXTY", " SEVENTY", " EIGHTY", " NINETY"};
    if(num >=20){
        int ArrayOrder = num/10;
        System.out.print(TENS[ArrayOrder]);  // add print statement not println
    }else{
        System.out.print(TENS[num]);   // add print statement not println
    }
    }

    public static void from1To19(int num){
    String ONES[] = {" ", " ONE", " TWO", " THREE", " FOUR", " FIVE", " SIX", " SEVEN", " EIGHT", " NINE", " TEN", " ELEVEN", " TWELVE", " THIRTEEN", " FOURTEEN", " FIFTEEN", " SIXTEEN", " SEVENTEEN", " EIGHTEEN", " NINETEEN"};
    System.out.println(ONES[num]);
    }

    public static void twoDigitNumber(int num){
        String ONES[] = {" ", " ONE", " TWO", " THREE", " FOUR", " FIVE", " SIX", " SEVEN", " EIGHT", " NINE", " TEN"};
        String PRO[] = {"",""," TWENTY", "THRTY", "FOURTY", " FIFTY", " SIXTY", " SEVENTY", " EIGHTY", " NINETY"};


        System.out.print(PRO[(num/10)]);
        System.out.print(ONES[(num%10)]);
        }


    public static void From101(int num){
        int first = num%10;//  find the first number
        num = num;//##
        int second = (num/10)%10;// find second number
        num = num;//#
        hundred(num); tens(second); from1To19(first);
    }  
}