ByteArrayInputStream&ByteArrayOutputStream源码分析

＃ByteArrayInputStream

源码

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public synchronized int read(byte b[], int off, int len) {

if (b == null) {

throw new NullPointerException();

} else if (off < 0 || len < 0 || len > b.length - off) {

throw new IndexOutOfBoundsException();

}

    if (pos >= count) {

        return -1;

    }

    int avail = count - pos;

    if (len > avail) {

        len = avail;

    }

    if (len <= 0) {

        return 0;

    }

    System.arraycopy(buf, pos, b, off, len);

    pos += len;

    return len;

}

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＃ByteArrayOutputStream

巴特西

ByteArrayInputStream&ByteArrayOutputStream源码分析

源码

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