-
import java.io.BufferedReader;
-
import java.io.BufferedWriter;
-
import java.io.File;
-
import java.io.FileInputStream;
-
import java.io.FileNotFoundException;
-
import java.io.FileWriter;
-
import java.io.IOException;
-
import java.io.InputStreamReader;
-
import java.io.UnsupportedEncodingException;
-
-
public class Number {
-
-
public static final String[] ENGLISH_NUMBER = { "zero", "one", "two",
-
"three", "four", "five", "six", "seven", "eight", "nine" };
-
-
public static final String[] ENGLISH_DOCNUMBER = { "ten", "twenty",
-
"thirty", "fourty", "fifty", "sixty", "seventy", "eighty", "ninety" };
-
-
public static final String[] ENGLISH_UNIT = { "hundred", "thousand",
-
"million", "billion" };
-
-
public static final StringBuilder sb = new StringBuilder(0);
-
-
public static void parse() {
-
sb.setLength(0);
-
readFile("in.txt");
-
writeFile(sb.toString(), "out.txt");
-
-
return;
-
}
-
-
public static void readFile(String fileName) {
-
-
File file = new File(fileName);
-
FileInputStream fis = null;
-
BufferedReader br = null;
-
try {
-
fis = new FileInputStream(file);
-
br = new BufferedReader(new InputStreamReader(fis, "gb2312"));
-
String temp = "";
-
while ((temp = br.readLine()) != null) {
-
sb.append(temp).append("=").append(formate(parseTotal(temp)))
-
.append("\r\n");
-
}
-
} catch (FileNotFoundException e) {
-
e.printStackTrace();
-
} catch (UnsupportedEncodingException e) {
-
e.printStackTrace();
-
} catch (IOException e) {
-
e.printStackTrace();
-
} finally {
-
try {
-
if (br != null) {
-
br.close();
-
}
-
if (fis != null) {
-
fis.close();
-
}
-
} catch (IOException e) {
-
e.printStackTrace();
-
}
-
}
-
}
-
-
public static void writeFile(String result, String fileName) {
-
File f = new File(fileName);
-
FileWriter fw = null;
-
BufferedWriter bw = null;
-
-
try {
-
if (!f.exists()) {
-
f.createNewFile();
-
}
-
fw = new FileWriter(f);
-
bw = new BufferedWriter(fw);
-
bw.write(result);
-
} catch (Exception e) {
-
e.printStackTrace();
-
} finally {
-
try {
-
if (bw != null) {
-
bw.close();
-
}
-
} catch (IOException e) {
-
e.printStackTrace();
-
}
-
}
-
}
-
-
public static String parseLine(String str) {
-
String result = "";
-
if (isLegel(str)) {
-
while (str.length() > 0) {
-
int length = str.length();
-
switch (length) {
-
case 1:
-
result += ENGLISH_NUMBER[Integer.valueOf(str)];
-
str = "";
-
break;
-
case 2:
-
char[] strArr = str.toCharArray();
-
if (Character.getNumericValue(strArr[0]) == 0) {
-
result += ("zero" + ENGLISH_NUMBER[Character
-
.getNumericValue(strArr[1])]);
-
} else {
-
result += (ENGLISH_DOCNUMBER[Character
-
.getNumericValue(strArr[0]) - 1]
-
+ " " + ENGLISH_NUMBER[Character
-
.getNumericValue(strArr[1])]);
-
}
-
str = "";
-
break;
-
case 3:
-
char[] strArr1 = str.toCharArray();
-
result += ENGLISH_NUMBER[Character
-
.getNumericValue(strArr1[0])]
-
+ " " + ENGLISH_UNIT[0] + " and ";
-
str = str.substring(1);
-
break;
-
case 4:
-
char[] strArr2 = str.toCharArray();
-
result += ENGLISH_NUMBER[Character
-
.getNumericValue(strArr2[0])]
-
+ " " + ENGLISH_UNIT[1] + " and ";
-
str = str.substring(1);
-
break;
-
default:
-
break;
-
}
-
}
-
} else {
-
result = "error";
-
}
-
-
if (result.indexOf("zero") != -1) {
-
result = result.replace("zero", "");
-
}
-
if (result.trim().endsWith("and")) {
-
result = result.substring(0, result.lastIndexOf("and"));
-
}
-
return result.trim();
-
}
-
-
public static String parseTotal(String str) {
-
String result = "";
-
while (str.length() > 0) {
-
if(str.indexOf("error") != -1)
-
{
-
result = "error";
-
break;
-
}
-
if (str.length() <= 3) {
-
result += parseLine(str);
-
break;
-
} else if (str.length() > 3 && str.length() < 7) {
-
String highStr = str.substring(0, str.length() - 3);
-
String lowStr = str.substring(str.length() - 3);
-
result += (parseLine(highStr) + " " + ENGLISH_UNIT[1] + " " + parseLine(lowStr));
-
break;
-
} else if (str.length() >= 7 && str.length() <= 9) {
-
String highStr = str.substring(0, str.length() - 6);
-
result += (parseLine(highStr) + " " + ENGLISH_UNIT[2] + " ");
-
str = str.substring(str.length() - 5);
-
} else if (str.length() > 9 && str.length() <= 10) {
-
String highStr = str.substring(0, str.length() - 9);
-
result = parseLine(highStr) + " " + ENGLISH_UNIT[3] + " ";
-
str = str.substring(str.length() - 8);
-
}
-
}
-
-
-
return result.toLowerCase();
-
}
-
-
public static boolean isLegel(String str) {
-
boolean flag = true;
-
if (str.length() >= 10) {
-
flag = false;
-
} else if (str.indexOf(".") != -1) {
-
flag = false;
-
} else {
-
try {
-
int number = Integer.parseInt(str);
-
if (number <= 0) {
-
flag = false;
-
}
-
} catch (NumberFormatException e) {
-
flag = false;
-
}
-
}
-
-
return flag;
-
}
-
-
public static String formate(String str) {
-
str = str.replace("ten one", "eleven");
-
str = str.replace("ten two", "twelve");
-
str = str.replace("ten three", "thirteen");
-
str = str.replace("ten four", "fourteen");
-
str = str.replace("ten five", "fifteen");
-
str = str.replace("ten six", "sixteen");
-
str = str.replace("ten seven", "seventeen");
-
str = str.replace("ten eight", "eighteen");
-
str = str.replace("ten nine", "nineteen");
-
-
return str;
-
}
-
-
public static void main(String[] args) {
-
System.out.println(formate(parseTotal("11632")));
-
System.out.println(formate(parseTotal("123")));
-
}
-
}
The output is:
eleven thousand six hundred and thirty two
one hundred and twenty three
