How do I swap two integers in an array, where my method takes in two integers and an array from main?

Question

I call my swap method in main, but it doesn\'t change anything. What am I doing wrong?

public static void main(String[] args){


    int mainArr[] = new int[         


        

Answer 1

Writing the code as so:

int mainArr[] = new int[20];  

for(int i =0; i 

will resolve the issue. The problem was you happened to be calling swap an even number of times, so it had a total effect of nothing.