Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.util.*;

public class Main {
    /**
     * @param sa a set
     * @param sb anotehr set
     * @return the intersection of <code>sa</code> and <code>sb</code>
     */
    public static <E> Set<E> intersection(Set<E> sa, Set<E> sb) {

        Set<E> result = new HashSet<E>();
        if (sa == null || sb == null || sa.isEmpty() || sb.isEmpty())
            return result;

        Set<E> smallest = sa.size() < sb.size() ? sa : sb;
        Set<E> biggest = smallest == sa ? sb : sa;

        for (E entry : smallest) {
            if (biggest.contains(entry))
                result.add(entry);
        }

        return result;
    }
}