【无标题】字符串匹配之暴力匹配java

//功能：暴力字符匹配.找到返回下标位置，未找到返回-1
public class BF {
    public static void main(String[] args) {
        String str1="hdlloworld-helloworld";
        String str2="ell";
        int index = new BF().bf(str1.toCharArray(),str2.toCharArray());
        System.out.println(index);
    }

    private int bf(char[] str1, char[] str2) {
        int i = 0;
        int j = 0;
        while ( i