PinYinHelper1.java
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package com.wugian.ping;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.regex.Pattern;
/**
* Created by wugian on 2017/9/16.
*/
public class PinYinHelper1 {
private static PinYinHelper1 helper;
private Map<String, String> pinyinTable;
private PinYinHelper1() {
pinyinTable = PinyinResource.getPinyinResource();
}
public static PinYinHelper1 getInstance() {
if (helper == null) {
helper = new PinYinHelper1();
}
return helper;
}
public String[] getFirstHead(String words) {
// System.out.println("PYH:getFirstHead()");
String[] pinYinArray = new String[1];
for (int i = 0; i < words.length(); i++) {
String substring = words.substring(i, i + 1);
if (isNumberOrAlphabet(substring)) {
for (int index = 0; index < pinYinArray.length; index++) {
if (pinYinArray[index] != null && !"".equals(pinYinArray[index])) {
pinYinArray[index] = pinYinArray[index] + substring;
} else {
pinYinArray[index] = substring;
}
}
} else {
String s = pinyinTable.get(substring);
if (s == null || "".equals(s.trim())) {
continue;
}
String[] tmp = s.split(",");
for (int tmpIndex = 0; tmpIndex < tmp.length; tmpIndex++) {
tmp[tmpIndex] = tmp[tmpIndex].substring(0, 1);
}
tmp = removeDuplicate(tmp);
int tmpLength = tmp.length;
if (tmpLength > 1) {
String[] big = new String[pinYinArray.length + (tmpLength - 1) * pinYinArray.length];
for (int i1 = 0; i1 < tmpLength; i1++) {
System.arraycopy(pinYinArray, 0, big, pinYinArray.length * i1, pinYinArray.length);
}
pinYinArray = big;
}
for (int j = 0; j < pinYinArray.length; j++) {
if (pinYinArray[j] != null && !"".equals(pinYinArray[j])) {
pinYinArray[j] = pinYinArray[j] + tmp[(j * tmpLength) / pinYinArray.length];
} else {
pinYinArray[j] = tmp[(j * tmpLength) / pinYinArray.length];
}
}
}
}
// String s = Arrays.toString(pinYinArray);
// System.out.println("PYH:result is " + s);
return pinYinArray;
}
private boolean isNumberOrAlphabet(String str) {
Pattern pattern = Pattern.compile("^[A-Za-z0-9]+$");
return pattern.matcher(str).matches();
}
private String[] removeDuplicate(String[] array) {
List<String> list = new ArrayList<String>();
list.add(array[0]);
for (int i = 1; i < array.length; i++) {
if (!list.toString().contains(array[i])) {
list.add(array[i]);
}
}
return list.toArray(new String[list.size()]);
}
public static void main(String[] args) {
// getFirstHead("中国人民is one a bc de test");
String aa = "test abc";
// aa = "b";
System.out.println(aa.substring(0, 1));
}
}