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java企业面试题（二）编程题答案

2009-06-03 18:21 531 查看

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 = 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 =Integer.parseInt(s);
}
Arrays.sort(ii);
//asc
for(int i=0;i<s.length;i++){
System.out.println(ii);
}
//desc
for(int i=(s.length-1);i>=0;i--){
System.out.println(ii);
}
}
}

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);
}
}

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java企业面试题（二） 编程题答案

java企业面试题（二）编程题答案