Brute-Force模式匹配算法两种实现方式

1.

public static int indexOf(String mainStr,String subString,int start) {
		if((mainStr.length()

2.

public static int indexOf(String mainString,String subString,int start) {
		int i = start;
		int j = 0;;
		if(mainString==null || subString==null || (mainString.length()mainString.length()) {
				return -1;
			}
		}
		if(j==subString.length()) {
			return i-j;
		}
		return -1;
	}