一道java笔试题，以为很简单，结果半天都没写对！请大虾给出个正确解答

9z本人lz · 发表于 2020-6-28 13:15:01

既然这样在上面的程序初始化时加一句
s = s.replaceFirst("^0+","");
去掉前面的0即可

烟花残影 · 发表于 2020-6-29 16:15:02

我以前用BASIC编的。但受限制于解释环境，输入数字不能>=10亿。但换个环境可以继续扩容。

10 DATA "零","壹","贰","叁","肆","伍","陆","柒","捌","玖"
20 DIM NUM$(10)
30 FOR I=0  TO 9
40 READ A$
50 NUM$(I)=A$
60 NEXT
70 DIM UNIT$(4)
80 UNIT$(1)="仟":UNIT$(2)="佰":UNIT$(3)="拾"
90 DIM SC$(3)
100 SC$(1)="亿":SC$(2)="万"
105 LOCATE 5,1:PRINT "不超过10亿";
110 LOCATE 1,1:INPUT "请输入一个阿拉伯数字(整)";N
120 IF INT(N)<>N  THEN PRINT "请输入整数":GOTO 110
125 IF N=0  THEN PRINT "零":END
130 N$=STR$(N):L=LEN(N$)
140 IF (L/4)=INT(L/4) THEN H=(L/4):GOTO 160
150 IF (L/4)>1  THEN H=INT(L/4)+1  ELSE H=1
160 DIM T$(3,4)
170 X=3:Y=4
180 FOR I=L  TO 1  STEP -1
190 T$(X,Y)=MID$(N$,I,1)
200 Y=Y-1
210 IF Y=0  THEN Y=4:X=X-1
220 NEXT
300 SH=4-H
310 FOR A=SH  TO 3
320 T=VAL(T$(A,1))
330 I=1
340 WHILE T=0
350 I=I+1
355 IF I=5 GOTO 470
360 T=VAL(T$(A,I))
370 LW=1
380 WEND
390 IF A<>SH  AND H>1  AND LW=1  THEN S$="零"
410 FOR J=I  TO 4
420 T=VAL(T$(A,J))
425 IF T=0  AND VAL(T$(A,J-1))=0  THEN GOTO 440
430 S$=S$+NUM$(T)+UNIT$(J*(T<>0))
440 NEXT
445 IF ?S$,3)<>"零" GOTO 460
450 S$=LEFT$(S$,(LEN(S$)-3)):WL=1
460 FN$=FN$+S$+SC$(A)
465 LW=0:S$=""
470 NEXT
480 PRINT FN$

烟花残影 · 发表于 2020-6-29 17:15:01

谁有文曲星的话可以将上述代码转成BAS，传入文曲星。可以运行一下。

烟花残影 · 发表于 2020-6-29 18:30:01

445 IF RIGHT$(S$,3)<>"零" GOTO 460

最爱雨天 · 发表于 2020-7-6 22:45:02

我也写了一个,个人以为位数太多也没什么意义，就做了15位的。
   另：我GOOGLE了一下，有说一兆=一万亿的，也有说一兆=一千一千亿的，我这里暂以为一兆=一万亿。代码如下：有不妥之处还请各位指正！

   package numberToCn;

import java.util.ArrayList;
import java.util.List;
import java.io.*;

public class NumberToCnModify {
List cnList = null,danweiList = null;
StringBuffer cnStr = null;
char[] tempStr = null;
int charLength = 0;

public NumberToCnModify(){
   cnList = new ArrayList();
   danweiList = new ArrayList();
   cnStr = new StringBuffer();
}

public void init(){
   cnList.add("零");
   cnList.add("壹");
   cnList.add("贰");
   cnList.add("叁");
   cnList.add("肆");
   cnList.add("伍");
   cnList.add("陆");
   cnList.add("柒");
   cnList.add("捌");
   cnList.add("玖");

   danweiList.add("");
   danweiList.add("拾");
   danweiList.add("佰");
   danweiList.add("仟");
   danweiList.add("万");
   danweiList.add("亿");
   danweiList.add("兆");
}

public boolean isNumber(char tempChar){
   boolean isNum = true;
   if((tempChar<'0')||(tempChar>'9')){
   System.out.println();
   System.out.println("Not Number"+tempChar);
   isNum=false;
   }
   return isNum;
}

public void getInputString(String inputStr){
   tempStr = inputStr.toCharArray();
   charLength = tempStr.length;
   if(charLength>15){
   System.out.println("The Number You Input Is Too Long!");
   System.exit(0);
   }
}

public String convertToBaseCn(int startNum,int endNum,String danwei){
   int allZero = 0;
   int tempNum = 0;
   String tempString = "";
   for(int i=startNum;i<endNum;i++){
   tempNum = Integer.parseInt(String.valueOf(tempStr[i]));
   if(i==startNum&&tempNum==0||i==startNum+1&&tempNum==0&&Integer.parseInt(String.valueOf(tempStr[i-1]))==0||i==startNum+2&&tempNum==0&&Integer.parseInt(String.valueOf(tempStr[i-1]))==0&&Integer.parseInt(String.valueOf(tempStr[i-2]))==0||i==startNum+3&&tempNum==0&&Integer.parseInt(String.valueOf(tempStr[i-1]))==0&&Integer.parseInt(String.valueOf(tempStr[i-2]))==0&&Integer.parseInt(String.valueOf(tempStr[i-3]))==0){
   if(i==startNum+3&&tempNum==0&&Integer.parseInt(String.valueOf(tempStr[i-1]))==0&&Integer.parseInt(String.valueOf(tempStr[i-2]))==0&&Integer.parseInt(String.valueOf(tempStr[i-3]))==0){
   allZero = 1;
   }
   //如果第一个是零或者1、2两个都是0或者1、2、3，1、2、3、4都是0的话,就不用打印零和相应的单位了。
   }else{
   if(i==endNum-1&&tempNum==0||i==endNum-2&&tempNum==0&&Integer.parseInt(String.valueOf(tempStr[i+1]))==0||i==endNum-3&&tempNum==0&&Integer.parseInt(String.valueOf(tempStr[i+1]))==0){
   //如果最后一个是0，某一个及其后面一个都是0的话，就不必打印0
   }else{
   tempString+=cnList.get(tempNum).toString();
   }

   if(tempNum!=0){//如果是0的话，就不用打印单位
   tempString+=danweiList.get(endNum-(i+1)).toString();
   }

   }
   }

   if(allZero == 0){
   tempString+=danwei;
   }

   return tempString;
}

public String convertToCn(){

   int notNumber = 0;
   int zeroRecord = 0;//当同时两个或多个位段都是0时，只要显示一个0
   String tempString = "";

try{

   for(int i=0;i<charLength;i++){
   if(!isNumber(tempStr[i])){
   notNumber = 1;
   break;
   }
   }

   if(notNumber == 1){
   System.out.println("Please Input Number!");
   return "";
   }else{
      if(charLength>12){
   tempString = convertToBaseCn(0,charLength-12,"兆");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }

   tempString = convertToBaseCn(charLength-12,charLength-8,"亿");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }

   tempString = convertToBaseCn(charLength-8,charLength-4,"万");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }

   tempString=convertToBaseCn(charLength-4,charLength,"");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }
   }else if(charLength>8){
   tempString=convertToBaseCn(0,charLength-8,"亿");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }

   tempString=convertToBaseCn(charLength-8,charLength-4,"万");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }

   tempString=convertToBaseCn(charLength-4,charLength,"");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }
   }else if(charLength>4){
   tempString=convertToBaseCn(0,charLength-4,"万");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }

   tempString=convertToBaseCn(charLength-4,charLength,"");
   if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }
   }else{
         tempString=convertToBaseCn(0,charLength,"");
         if(tempString.equals("")){
   zeroRecord ++;
   }else{
   zeroRecord = 0;
   }
   cnStr.append(tempString);
   if(zeroRecord ==1 ){
   cnStr.append("零");
   }
   }
   }
}catch(NullPointerException ne){
System.out.println("NullPointerException:"+ne.getMessage());
}catch(IndexOutOfBoundsException iobe){
System.out.println("IndexOutOfBoundsException:"+iobe.getMessage());
}finally{

}
   return cnStr.toString();
}

public static void main(String[] args){
   NumberToCnModify ntc = new NumberToCnModify();
   ntc.init();
   ntc.getInputString("300340000000130");
   System.out.println(ntc.convertToCn());
}
}

幽灵人间 · 发表于 2020-7-7 18:30:01

向各位高手领教了!

cdl30000 · 发表于 2020-7-7 23:15:02

支持“000123423400000000000130”的

import java.math.BigInteger;
import java.util.Scanner;

public class NumToChinese {

public static void ToChinese(BigInteger num) {
String n[] = {"零","壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖"};
String unit[] = { "",  "拾" , "佰","仟"};
String unit1[] = { "亿", "万" };
StringBuilder chi = new StringBuilder();

for (int i = 0; i < num.toString().length(); i++) {
chi.append(n[Integer.parseInt(String.valueOf(num.toString().charAt(i)))]);
chi.append(unit[(num.toString().length()-i-1) % 4]);    // 添加单位
if ((num.toString().length()-i) % 4 == 1)             // 添加单位1
{
chi.append(unit1[(int) Math.floor((double) (num.toString().length()-i) / 4) % 2]);
}
}
String ch = chi.toString();
ch = ch.replaceAll("零仟", "零");
ch = ch.replaceAll("零佰", "零");
ch = ch.replaceAll("零拾", "零");
while(ch.indexOf("零零")>0)
{
ch = ch.replaceAll("零零", "零");
}
ch = ch.replaceAll("零万", "万");
ch = ch.replaceAll("零亿", "亿");
ch = ch.replaceAll("亿万", "亿");
System.out.println(ch.substring(0, ch.length()-1));
}

public static void main(String[] args) {
Scanner in = new Scanner(System.in);
while(true)
{
BigInteger num = in.nextBigInteger();
if(num.equals(0))
{
System.exit(0);
}
ToChinese(num);
}
}
}

tzhhouse · 发表于 2020-7-12 09:30:01

mark,以前用C++写过一个数字转英文大写的，不知有帮助没，代码如下：

//EnglishNumber.h

#pragma once
#include<string>
#include<cassert>
#include "ValueTraits.h"

using namespace std;

class EnglishNumber
{
public:
EnglishNumber(){}
~EnglishNumber(){}
template<typename ValueType>
      const string NumberName(const ValueType &) const;
private:
template<typename ValueType>
      const string BaseDigit(const ValueType &) const;
template<typename ValueType>
      const string TensDigit(const ValueType &) const;
template<typename ValueType>
      const string HundredsDigit(const ValueType &) const;
template<typename ValueType>
      const string MoreDigit(const ValueType &) const;
};

template<typename ValueType>
const string EnglishNumber::BaseDigit(const ValueType & iNumber) const{
      const static string BaseNumName[] = {"zero",
         "one","two","three","four","five","six",
         "seven","eight","nine","ten","eleven",
         "twelve","thirteen","fourteen","fifteen",
         "sixteen","seventeen","eighteen","nineteen"};
      assert(iNumber >= 0 && iNumber < 20 && "Function BaseNumber");
      return BaseNumName[ValueTraits<ValueType>::Long(iNumber)];
}

template<typename ValueType>
const string EnglishNumber::TensDigit(const ValueType & iNumber) const{
      const static string TensDigitName[] = {
         "twenty","thirty","forty","fifty",
         "sixty","seventy","eighty","ninety"};
      assert(iNumber >= 0 && iNumber < 100 && "Function TensDigit");
      if(iNumber < 20)
         return BaseDigit(iNumber);
      ValueType h(iNumber),l(iNumber);
      h = iNumber / 10;
      l = iNumber % 10;
      if(0 == l)
         return TensDigitName[ValueTraits<ValueType>::Long(h) - 2];
      return TensDigitName[ValueTraits<ValueType>::Long(h) - 2] + "-" + BaseDigit(l);
}

template<typename ValueType>
const string EnglishNumber::HundredsDigit(const ValueType & iNumber) const{
      assert(iNumber >= 0 && iNumber < 1000 && "Function HundredsDigit");
      if(iNumber < 100)
         return TensDigit(iNumber);
      ValueType h,l;
      h = iNumber / 100;
      l = iNumber % 100;
      if(0 == l)
         return BaseDigit(h) + " hundred";
      return BaseDigit(h) + " hundred and " + TensDigit(l);
}

template<typename ValueType>
const string EnglishNumber::MoreDigit(const ValueType & iNumber) const{
      const static string MoreName[] = {"thousand","million","billion"};
      assert(iNumber >= 0 && "Function MoreNumber");
      if(iNumber < 1000)
         return HundredsDigit(iNumber);
      ValueType n;
      n = iNumber % 1000;
      string result;
      if(0 != n)
         result = HundredsDigit(n);
      n = iNumber / 1000;
      int i = 0;
      do{
         ValueType l = n % 1000;
         n /= 1000;
         if(0 != l)
            if(0 == result.size())
                  result = HundredsDigit(l) + " " + MoreName[i];
            else
                  result = HundredsDigit(l) + " " + MoreName[i] + ", " + result;
      }while(n > 0 && ++i < 3);
      if(n > 0)
         if(0 == result.size())
            result = MoreDigit(n) + " trillion";
         else
            result = MoreDigit(n) + " trillion, " + result;
      return result;
}

template<typename ValueType>
const string EnglishNumber::NumberName(const ValueType & iNumber) const{
      if(iNumber < 0)
         return "minus " + MoreDigit(-iNumber);
      return MoreDigit(iNumber);
}

//ValueTraits.h

#pragma once

template<typename T>struct ValueTraits
{
static long Long(const T & v)
{
return v;
}
};

unicorn3721 · 发表于 2020-7-17 03:15:01

这个要是数字太多，后面怎么算啊？我觉得应该是先定单位；如万千百十万千百十亿千百十万千百十个，然后将字符串的每一位往进去插

hushengfox · 发表于 2020-7-18 08:00:01

好多算法，好多牛.....

		自动登录	找回密码
密码			立即注册