Find Intersection of Two Arrays

import java.util.*;
class Main{
public static void main(String[] args){
Scanner sc=new Scanner(System.in);
int n1=sc.nextInt();
int[] a=new int[n1];
for(int i=0;i<n1;i++) a[i]=sc.nextInt();
int n2=sc.nextInt();
int[] b=new int[n2];
for(int i=0;i<n2;i++) b[i]=sc.nextInt();
for(int i=0;i<n1;i++){
for(int j=0;j<n2;j++){
if(a[i]==b[j]){
System.out.print(a[i]+" ");
break;
}
}
}
}
}