java 字符串搜索

private void caculateKeysCount(Map<String,Integer> keyMap,String textLine)
{
Iterator<Entry<String, Integer>> iter =keyMap.entrySet().iterator();
while (iter.hasNext()) {
Map.Entry entry = (Map.Entry)iter.next();
String  key =String.valueOf(entry.getKey());
int count = 0;
String[] k = textLine.split(key);
if(k.length == 0 && textLine.indexOf(key) != -1){
count = textLine.length() / key.length();
}
else if (textLine.lastIndexOf(key) == (textLine.length() - key.length()))
count = k.length;//BUG
else
count = k.length - 1;
System.out.println(key+"出现次数为："+count);

   }
}

public static void main(String argus[]) {
Test test =new Test();
Map<String, Integer> map =new HashMap<String, Integer>();
map.put("love", 0);
map.put("l", 0);
    test.caculateKeysCount(map,"");
}