Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.*;

public class Main {
    /**
     * added by liyong
     */
    public static <T> Collection<T> same(Collection<T> c1, Collection<T> c2) {
        if (isEmpty(c1) || isEmpty(c2))
            return new ArrayList<T>(0);

        List<T> result = new ArrayList<T>();
        for (T item : c2) {
            if (c1.contains(item)) {
                result.add(item);
            }
        }
        return result;
    }

    /**
     * added by liyong
     */
    public static boolean isEmpty(Collection c) {
        return c == null || c.isEmpty();
    }

    /**
     * added by liyong
     */
    public static boolean isEmpty(Map map) {
        return map == null || map.isEmpty();
    }
}