This program has a bug that leads to infinite recursion. Modify fn(int x, int y) method to fix the problem.  Manually trace the recursive call, fn(2,3) and show the output (step by step).  Can you identify the Base Case in recursive method fn(int x, int y)?

Database System Concepts
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ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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Chapter1: Introduction
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This program has a bug that leads to infinite recursion. Modify fn(int x, int y) method to fix the problem. 

Manually trace the recursive call, fn(2,3) and show the output (step by step).

 Can you identify the Base Case in recursive method fn(int x, int y)?

public class Test {
public static void main(String[] args) {
int result = 0;
result = fn(2,3);
System.out.println("The result is: " + result);
%3D
}
// fn(x, 1) = x
// fn(x, y) = fn(x, y-1) + 2, when y>1
public static int fn(int x, int y) {
if (x <= 1)
return x;
else
return fn(x, y-1) + 2;
}
}
Transcribed Image Text:public class Test { public static void main(String[] args) { int result = 0; result = fn(2,3); System.out.println("The result is: " + result); %3D } // fn(x, 1) = x // fn(x, y) = fn(x, y-1) + 2, when y>1 public static int fn(int x, int y) { if (x <= 1) return x; else return fn(x, y-1) + 2; } }
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