GenericsMethodAndClassTest.java

import java.util.*;

public class GenericsMethodAndClassTest {

	private ArrayList<Integer> list;

	public GenericsMethodAndClassTest(ArrayList<Integer> list) {
		this.list = list;
	}

	public int getSum() {
		int sum = 0;
		for (int i : list) {
			sum += i;
		}
		return sum;
	}

	public int add(ArrayList<Integer> other) {
		GenericsMethodAndClassTest g = new GenericsMethodAndClassTest(other);
		return getSum() + g.getSum();
	}

	public static void main(String[] args) {
		ArrayList<Integer> list = new ArrayList<Integer>();
		list.add(3);
		list.add(6);
		GenericsMethodAndClassTest g = new GenericsMethodAndClassTest(list);
		System.out.println(g.getSum());
		ArrayList<Integer> list2 = new ArrayList<Integer>();
		list.add(1);
		list.add(2);
		System.out.println(g.add(list2));
	}

}