java中的str.find()等价物？

Question

Hi I'm trying to learn java so I'm converting my working c++ code to java. But I'm unsure about how to proceed with str.find(). Is there an equivalent of this in java? What I want to happen is I look for the first occurrence of a string in another string after the first comma not integer. I know of indexOf() and indexLastOf but they will only produce the fist and last occurrences.

void found() {
    int count = 1;
    size_t find = str.find(','); 
        while (find != string::npos) {
            count++;
            find = str.find(',', find + 1);
        }
     }
};

Answer 1

you can use str.indexOf('some string', indexToStartLooking); which will find the first occurrence of "some string" after the int in the second parameter and will return an int.

Answer 2

Try using Java's Pattern and Matcher. Those classes involve regex pattern matching. It is very easy. Search here for other existing posts on that subject.