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

public class swapInt
{ 
public static void main(String args[])
{


swap(new int[]{2,3,5,6,8},1,3);


}
public static void swap(int[]a,int i,int j)
{
    int temp=a[i];
    a[i]= a[j];
    a[j]=temp;
    for(int b=0;b