JavaHW-7 (1)

package Assignment1;

import java.awt.Checkbox;
import java.awt.Container;
import java.util.Scanner;
import java.util.Vector;

public class Problem7 {

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int arr[] = new int[10];
        int check[] = new int[10];
        // int arr1[]=new int[10];
        Vector<Integer> arr1=new Vector<Integer>(10);
        for (int i = 0; i < arr.length; i++) {
            arr[i] = in.nextInt();
            check[arr[i]]++;
        }
        for (int i = 0; i < arr.length; i++) {
            if (check[arr[i]] >= 2 && check[arr[i]] < 4 && contain(arr1, arr[i])==false) {
                arr1.addElement(arr[i]);
            }
        }
        arr1.toString();
        for (int i = 0; i < arr1.size(); i++) {
            System.out.println(arr1.get(i));
        }
    }

    static boolean contain(Vector<Integer>arr1, int num) {
        for (int i = 0; i < arr1.size(); i++) {
            if (arr1.contains(num)) {
                //System.out.println(num+"found");
                return true;
            }
        }
        //System.out.println(num+"not found");
        return false;
    }

}