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类似的Stream.findFirst(),有没有办法写Stream.findNth()？

我正在通过重写一些遗留代码来练习Java 8.而且,我想知道如何使用Stream API编写以下函数.

static curPipeNumber = 0;

/** skipToEntry() updates 'curPipeNumber' to 'pipeNumber' and returns the first byte position of the word before the ('pipeNumber')-th pipe.
 * It does so by reading and ignoring unnecessary bytes from the buffer.
 * e.g., 
 */
static int skipToEntry(byte[] buf, int len, int nextByteToBeRead, int pipeNumber) {

    if(curPipeNumber == pipeNumber)
        return nextByteToBeRead;

    for(; nextByteToBeRead < len; nextByteToBeRead++) {
        if(buf[nextByteToBeRead] == '|') {
            ++curPipeNumber;
            if(curPipeNumber == pipeNumber) {
                return ++nextByteToBeRead; …