Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import java.util.Collection;
import java.util.HashSet;
import java.util.Set;

public class Main {
    public static <T> boolean hasDuplicates(Collection<T> collection) {
        Set<T> set = new HashSet<T>(collection);
        return set.size() != collection.size();
    }
}