JAVA编程题

JAVA编程题

1．现在输入n个数字，以逗号，分开；然后可选择升或者降序排序；按提交键就在另一页面显示按什么排序，结果为，提供reset

import java.util.*;

public class bycomma{

public static String[] splitStringByComma(String source){

  if(source==null||source.trim().equals(""))

    return null;

  StringTokenizer commaToker = new StringTokenizer(source,",");

  String[] result = new String[commaToker.countTokens()];

  int i=0;

  while(commaToker.hasMoreTokens()){

    result[i] = commaToker.nextToken();

    i++;

  }

  return result;

}

public static void main(String args[]){

String[] s = splitStringByComma("5,8,7,4,3,9,1");

int[] ii = new int[s.length];

for(int i = 0;i<s.length;i++){

ii[i] =Integer.parseInt(s[i]);

}

    Arrays.sort(ii);

    //asc

    for(int i=0;i<s.length;i++){

    System.out.println(ii[i]);

    }

    //desc

    for(int i=(s.length-1);i>=0;i--){

    System.out.println(ii[i]);

    }

}

}

2．金额转换，阿拉伯数字的金额转换成中国传统的形式如：（￥1011）－>（一千零一拾一元整）输出。

package test.format;

import java.text.NumberFormat;

import java.util.HashMap;

public class SimpleMoneyFormat {

  public static final String EMPTY = "";

  public static final String ZERO = "零";

  public static final String ONE = "壹";

  public static final String TWO = "贰";

  public static final String THREE = "叁";

  public static final String FOUR = "肆";

  public static final String FIVE = "伍";

  public static final String SIX = "陆";

  public static final String SEVEN = "柒";

  public static final String EIGHT = "捌";

  public static final String NINE = "玖";

  public static final String TEN = "拾";

  public static final String HUNDRED = "佰";

  public static final String THOUSAND = "仟";

  public static final String TEN_THOUSAND = "万";

  public static final String HUNDRED_MILLION = "亿";

  public static final String YUAN = "元";

  public static final String JIAO = "角";

  public static final String FEN = "分";

  public static final String DOT = ".";

  private static SimpleMoneyFormat formatter = null;

  private HashMap chineseNumberMap = new HashMap();

  private HashMap chineseMoneyPattern = new HashMap();

  private NumberFormat numberFormat = NumberFormat.getInstance();

  private SimpleMoneyFormat() {

    numberFormat.setMaximumFractionDigits(4);

    numberFormat.setMinimumFractionDigits(2);

    numberFormat.setGroupingUsed(false);

    chineseNumberMap.put("0", ZERO);

    chineseNumberMap.put("1", ONE);

    chineseNumberMap.put("2", TWO);

    chineseNumberMap.put("3", THREE);

    chineseNumberMap.put("4", FOUR);

    chineseNumberMap.put("5", FIVE);

    chineseNumberMap.put("6", SIX);

    chineseNumberMap.put("7", SEVEN);

    chineseNumberMap.put("8", EIGHT);

    chineseNumberMap.put("9", NINE);

    chineseNumberMap.put(DOT, DOT);

    chineseMoneyPattern.put("1", TEN);

    chineseMoneyPattern.put("2", HUNDRED);

    chineseMoneyPattern.put("3", THOUSAND);

    chineseMoneyPattern.put("4", TEN_THOUSAND);

    chineseMoneyPattern.put("5", TEN);

    chineseMoneyPattern.put("6", HUNDRED);

    chineseMoneyPattern.put("7", THOUSAND);

    chineseMoneyPattern.put("8", HUNDRED_MILLION);

  }

  public static SimpleMoneyFormat getInstance() {

    if (formatter == null)

      formatter = new SimpleMoneyFormat();

    return formatter;

  }

  public String format(String moneyStr) {

    checkPrecision(moneyStr);

    String result;

    result = convertToChineseNumber(moneyStr);

    result = addUnitsToChineseMoneyString(result);

    return result;

  }

  public String format(double moneyDouble) {

    return format(numberFormat.format(moneyDouble));

  }

  public String format(int moneyInt) {

    return format(numberFormat.format(moneyInt));

  }

  public String format(long moneyLong) {

    return format(numberFormat.format(moneyLong));

  }

  public String format(Number moneyNum) {

    return format(numberFormat.format(moneyNum));

  }

  private String convertToChineseNumber(String moneyStr) {

    String result;

    StringBuffer cMoneyStringBuffer = new StringBuffer();

    for (int i = 0; i < moneyStr.length(); i++) {

      cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(i, i + 1)));

    }

    //拾佰仟万亿等都是汉字里面才有的单位，加上它们

    int indexOfDot = cMoneyStringBuffer.indexOf(DOT);

    int moneyPatternCursor = 1;

    for (int i = indexOfDot - 1; i > 0; i--) {

      cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY + moneyPatternCursor));

      moneyPatternCursor = moneyPatternCursor == 8 ? 1 : moneyPatternCursor + 1;

    }

    String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer.indexOf("."));

    cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("."), cMoneyStringBuffer.length());

    while (cMoneyStringBuffer.indexOf("零拾") != -1) {

      cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零拾"), cMoneyStringBuffer.indexOf("零拾") + 2, ZERO);

    }

    while (cMoneyStringBuffer.indexOf("零佰") != -1) {

      cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零佰"), cMoneyStringBuffer.indexOf("零佰") + 2, ZERO);

    }

    while (cMoneyStringBuffer.indexOf("零仟") != -1) {

      cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零仟"), cMoneyStringBuffer.indexOf("零仟") + 2, ZERO);

    }

    while (cMoneyStringBuffer.indexOf("零万") != -1) {

      cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零万"), cMoneyStringBuffer.indexOf("零万") + 2, TEN_THOUSAND);

    }

    while (cMoneyStringBuffer.indexOf("零亿") != -1) {

      cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零亿"), cMoneyStringBuffer.indexOf("零亿") + 2, HUNDRED_MILLION);

    }

    while (cMoneyStringBuffer.indexOf("零零") != -1) {

      cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零零"), cMoneyStringBuffer.indexOf("零零") + 2, ZERO);

    }

    if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() - 1)

      cMoneyStringBuffer.delete(cMoneyStringBuffer.length() - 1, cMoneyStringBuffer.length());

    cMoneyStringBuffer.append(fractionPart);

    result = cMoneyStringBuffer.toString();

    return result;

  }

  private String addUnitsToChineseMoneyString(String moneyStr) {

    String result;

    StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr);

    int indexOfDot = cMoneyStringBuffer.indexOf(DOT);

    cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN);