What is the output of the following program and show all your workings?  public class Main{ public static void main(String[] args) { System.out.printin(mystery(5)); } static int mystery(int num){ if(num <= 1) return 1; else{ return mystery(num-1) + mystery(num—2) ; }

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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What is the output of the following program and show all your workings? 
public class Main{
public static void main(String[] args) {
System.out.printin(mystery(5));
}
static int mystery(int num){
if(num <= 1)
return 1;
else{
return mystery(num-1) + mystery(num—2) ;
}

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