Write a program to accept two integer arrays from the user and print all the common elements in two arrays.

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import java.io.*;
class common {
 public static void main()throws IOException {
 BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
 System.out.println("Enter the size of the first array");
 int n=Integer.parseInt(br.readLine());
 int Arr1[]=new int[n];
 System.out.println("Enter the values");
 for(int i=0;i<n;i++)
 Arr1[i]=Integer.parseInt(br.readLine());
 System.out.println("Enter the size of the second array");
 int o=Integer.parseInt(br.readLine());
 int Arr2[]=new int[o];
 System.out.println("Enter the values");
 for(int i=0;i<o;i++)
 Arr2[i]=Integer.parseInt(br.readLine());
 boolean flag=false;
 for(int i=0;i<n;i++)
 {
 for(int j=0;j<o;j++)
 {
 if(Arr1[i]==Arr2[j])
 {
 System.out.print("THE COMMON ELEMENTS ARE-"+Arr1[i]+"\t");
 flag=true;
 }
 }
 } 
  System.out.println();
 if(flag==false)
 System.out.println("THERE ARE NO COMMON ELEMENTS");
 }
}

Output:
Enter the size of the first array
4
Enter the values
1
2
3
4
Enter the size of the second array
5
Enter the values
2
4
6
8
10
THE COMMON ELEMENTS ARE- 2
THE COMMON ELEMENTS ARE- 4

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