public static String intToChnNumConverter(int num){
    String resultNumber = null;
    if(num > 10000 || num < 0){
        return "";
    }
    HashMap chnNumbers = new HashMap();
    chnNumbers.put(0, "零");
    chnNumbers.put(1, "一");
    chnNumbers.put(2, "二");
    chnNumbers.put(3, "三");
    chnNumbers.put(4, "四");
    chnNumbers.put(5, "五");
    chnNumbers.put(6, "六");
    chnNumbers.put(7, "七");
    chnNumbers.put(8, "八");
    chnNumbers.put(9, "九");
 
    HashMap unitMap = new HashMap();
    unitMap.put(1, "");
    unitMap.put(10, "十");
    unitMap.put(100, "百");
    unitMap.put(1000, "千");
    int[] unitArray = {1000, 100, 10, 1};
 
    StringBuilder result = new StringBuilder();
    int i = 0;
    while(num > 0){
        int n1 = num / unitArray[i];
        if(n1 > 0){
            result.append(chnNumbers.get(n1)).append(unitMap.get(unitArray[i]));
        }
        if(n1 == 0){
            if(result.lastIndexOf("零") != result.length()-1){
                result.append("零");
            }
        }
        num = num % unitArray[i++];
        if(num == 0){
            break;
        }
    }
    resultNumber = result.toString();
    if(resultNumber.startsWith("零")){
        resultNumber = resultNumber.substring(1);
    }
    if(resultNumber.startsWith("一十")){
        resultNumber = resultNumber.substring(1);
    }
    return resultNumber;
}