Bubble sort. Exercise 4-3.

while (doBubble) {
doBubbleFlag = 0;
for (int end = 1; end 0) {
doBubbleFlag = 1;
paragraph = subStr[(end - 1)];
subStr[(end - 1)] = subStr[end];
subStr[end] = paragraph;
}

}
if (doBubbleFlag == 0)
doBubble = false;
}