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
1 import java.util.*; 2 3 public class bycomma{ 4 public static String[] splitStringByComma(String source){ 5 if(source==null||source.trim().equals("")) 6 return null; 7 StringTokenizer commaToker = new StringTokenizer(source,","); 8 String[] result = new String[commaToker.countTokens()]; 9 int i=0; 10 while(commaToker.hasMoreTokens()){ 11 result[i] = commaToker.nextToken(); 12 i++; 13 } 14 return result; 15 } 16 17 public static void main(String args[]){ 18 String[] s = splitStringByComma("5,8,7,4,3,9,1"); 19 int[] ii = new int[s.length]; 20 for(int i = 0;iii[i] =Integer.parseInt(s[i]); 21 } 22 23 Arrays.sort(ii); 24 //asc 25 for(int i=0;iSystem.out.println(ii[i]); 26 } 27 //desc 28 for(int i=(s.length-1);i>=0;i--){ 29 System.out.println(ii[i]); 30 } 31 } 32 }
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。
1 package test.format; 2 import java.text.NumberFormat; 3 import java.util.HashMap; 4 public class SimpleMoneyFormat { 5 public static final String EMPTY = ""; 6 public static final String ZERO = "零"; 7 public static final String ONE = "壹"; 8 public static final String TWO = "贰"; 9 public static final String THREE = "叁"; 10 public static final String FOUR = "肆"; 11 public static final String FIVE = "伍"; 12 public static final String SIX = "陆"; 13 public static final String SEVEN = "柒"; 14 public static final String EIGHT = "捌"; 15 public static final String NINE = "玖"; 16 public static final String TEN = "拾"; 17 public static final String HUNDRED = "佰"; 18 public static final String THOUSAND = "仟"; 19 public static final String TEN_THOUSAND = "万"; 20 public static final String HUNDRED_MILLION = "亿"; 21 public static final String YUAN = "元"; 22 public static final String JIAO = "角"; 23 public static final String FEN = "分"; 24 public static final String DOT = "."; 25 26 private static SimpleMoneyFormat formatter = null; 27 private HashMap chineseNumberMap = new HashMap(); 28 private HashMap chineseMoneyPattern = new HashMap(); 29 private NumberFormat numberFormat = NumberFormat.getInstance(); 30 31 private SimpleMoneyFormat() { 32 numberFormat.setMaximumFractionDigits(4); 33 numberFormat.setMinimumFractionDigits(2); 34 numberFormat.setGroupingUsed(false); 35 36 chineseNumberMap.put("0", ZERO); 37 chineseNumberMap.put("1", ONE); 38 chineseNumberMap.put("2", TWO); 39 chineseNumberMap.put("3", THREE); 40 chineseNumberMap.put("4", FOUR); 41 chineseNumberMap.put("5", FIVE); 42 chineseNumberMap.put("6", SIX); 43 chineseNumberMap.put("7", SEVEN); 44 chineseNumberMap.put("8", EIGHT); 45 chineseNumberMap.put("9", NINE); 46 chineseNumberMap.put(DOT, DOT); 47 48 chineseMoneyPattern.put("1", TEN); 49 chineseMoneyPattern.put("2", HUNDRED); 50 chineseMoneyPattern.put("3", THOUSAND); 51 chineseMoneyPattern.put("4", TEN_THOUSAND); 52 chineseMoneyPattern.put("5", TEN); 53 chineseMoneyPattern.put("6", HUNDRED); 54 chineseMoneyPattern.put("7", THOUSAND); 55 chineseMoneyPattern.put("8", HUNDRED_MILLION); 56 } 57 58 public static SimpleMoneyFormat getInstance() { 59 if (formatter == null) 60 formatter = new SimpleMoneyFormat(); 61 return formatter; 62 } 63 64 public String format(String moneyStr) { 65 checkPrecision(moneyStr); 66 String result; 67 result = convertToChineseNumber(moneyStr); 68 result = addUnitsToChineseMoneyString(result); 69 return result; 70 } 71 72 public String format(double moneyDouble) { 73 return format(numberFormat.format(moneyDouble)); 74 } 75 76 public String format(int moneyInt) { 77 return format(numberFormat.format(moneyInt)); 78 } 79 80 public String format(long moneyLong) { 81 return format(numberFormat.format(moneyLong)); 82 } 83 84 public String format(Number moneyNum) { 85 return format(numberFormat.format(moneyNum)); 86 } 87 88 private String convertToChineseNumber(String moneyStr) { 89 String result; 90 StringBuffer cMoneyStringBuffer = new StringBuffer(); 91 for (int i = 0; i < moneyStr.length(); i++) { 92 cMoneyStringBuffer.append(chineseNumberMap.get(moneyStr.substring(i, i + 1))); 93 } 94 //拾佰仟万亿等都是汉字里面才有的单位,加上它们 95 int indexOfDot = cMoneyStringBuffer.indexOf(DOT); 96 int moneyPatternCursor = 1; 97 for (int i = indexOfDot - 1; i > 0; i--) { 98 cMoneyStringBuffer.insert(i, chineseMoneyPattern.get(EMPTY + moneyPatternCursor)); 99 moneyPatternCursor = moneyPatternCursor == 8 ? 1 : moneyPatternCursor + 1; 100 } 101 102 String fractionPart = cMoneyStringBuffer.substring(cMoneyStringBuffer.indexOf(".")); 103 cMoneyStringBuffer.delete(cMoneyStringBuffer.indexOf("."), cMoneyStringBuffer.length()); 104 while (cMoneyStringBuffer.indexOf("零拾") != -1) { 105 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零拾"), cMoneyStringBuffer.indexOf("零拾") + 2, ZERO); 106 } 107 while (cMoneyStringBuffer.indexOf("零佰") != -1) { 108 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零佰"), cMoneyStringBuffer.indexOf("零佰") + 2, ZERO); 109 } 110 while (cMoneyStringBuffer.indexOf("零仟") != -1) { 111 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零仟"), cMoneyStringBuffer.indexOf("零仟") + 2, ZERO); 112 } 113 while (cMoneyStringBuffer.indexOf("零万") != -1) { 114 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零万"), cMoneyStringBuffer.indexOf("零万") + 2, TEN_THOUSAND); 115 } 116 while (cMoneyStringBuffer.indexOf("零亿") != -1) { 117 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零亿"), cMoneyStringBuffer.indexOf("零亿") + 2, HUNDRED_MILLION); 118 } 119 while (cMoneyStringBuffer.indexOf("零零") != -1) { 120 cMoneyStringBuffer.replace(cMoneyStringBuffer.indexOf("零零"), cMoneyStringBuffer.indexOf("零零") + 2, ZERO); 121 } 122 if (cMoneyStringBuffer.lastIndexOf(ZERO) == cMoneyStringBuffer.length() - 1) 123 cMoneyStringBuffer.delete(cMoneyStringBuffer.length() - 1, cMoneyStringBuffer.length()); 124 cMoneyStringBuffer.append(fractionPart); 125 126 result = cMoneyStringBuffer.toString(); 127 return result; 128 } 129 130 private String addUnitsToChineseMoneyString(String moneyStr) { 131 String result; 132 StringBuffer cMoneyStringBuffer = new StringBuffer(moneyStr); 133 int indexOfDot = cMoneyStringBuffer.indexOf(DOT); 134 cMoneyStringBuffer.replace(indexOfDot, indexOfDot + 1, YUAN);