判断一段文本中出现比例是否命中

package com.wlkj.test;
/**
 * 判断一段文本中出现比例是否命中
 * @author 黄宝康
 *
 */
public class WordUtil {
	public static int appearNumber(String srcText, String findText) {
	    int count = 0;
	    int index = 0;
	    while ((index = srcText.indexOf(findText, index)) != -1) {
	        index = index + findText.length();
	        count++;
	    }
	    return count;
	}
	
	// 判断评论是否是非法评论
	public static boolean isBadComment(String comment,String badword,double baseratio){
		System.out.println("调用"+badword);
		int time = appearNumber(comment, badword);
		double ratio = badword.length()*time*1.0/comment.length();// 过滤词长度*出现次数/评论的长度
		//System.out.println("比例="+ratio);
		if(ratio>baseratio){
			return true;
		}else{
			return false;
		}
	}
	
	public static void main(String[] args) {
		String test_str = "赞赞赞，好";
		System.out.println(isBadComment(test_str, "赞", 0.5));
		//比例=0.6
		//true
	}
}