Can you check broo it's not deserved output

Question

public class Program
{
int[] frequentSort(int ar[]){
int na[]=new int[ar.length];
for(int i=0;i<ar.length;i++){
for(int j=i+1;j<ar.length;j++){
if(ar[i]<ar[j])
na[i]=ar[i];
else
na[i+1]=ar[j];

}

}
return na;

}
public static void main(String[] args) {
int a[]={1,3,2,4,1};
Program p=new Program();
int c[]=p.frequentSort(a);
for(int k=0;k<c.length;k++){
System.out.print(c[k]);
}

}
}

Answer 1

import java.util.Arrays;

public class Program {
int[] frequentSort(int a[]) {
Arrays.sort(a);
return a;
}

public static void main(String[] args) {
int a[] = { 1, 3, 2, 4, 1 };
Program p = new Program();
int c[] = p.frequentSort(a);
for (int k = 0; k < c.length; k++) {
System.out.print(c[k]);
}
}
}

Answer 2

Without using any method