There is an error in the following recursive method, which implements a binary search. Find the error and indicate how to fix the code so that the method will work correctly

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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There is an error in the following recursive method, which implements a binary search. Find the error and indicate how to fix the code so that the method will work correctly.

private int recFind(long searchKey, int lowerBound, int upperBound)
{
int curIn;
24
25
27
28
curIn = (lowerBound + upperBound )/ 2;
29
30
if (lowerBound > upperBound)
31
return nElems;
32
else
33
{
if (a[curIn] < searchKey)
return recFind (searchKey, curIn+l, upperBound) ;
34
35
36
else
return recFind (searchKey, lowerBound, curIn-1);
}
}
37
38
39
N N N N~MOM333 333 m3
Transcribed Image Text:private int recFind(long searchKey, int lowerBound, int upperBound) { int curIn; 24 25 27 28 curIn = (lowerBound + upperBound )/ 2; 29 30 if (lowerBound > upperBound) 31 return nElems; 32 else 33 { if (a[curIn] < searchKey) return recFind (searchKey, curIn+l, upperBound) ; 34 35 36 else return recFind (searchKey, lowerBound, curIn-1); } } 37 38 39 N N N N~MOM333 333 m3
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