Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//it under the terms of the GNU Affero General Public License as published by

import java.util.Iterator;

public class Main {
    public static <T> T getSingleIfExist(Iterable<T> iterable) {
        if (iterable == null)
            return null;
        final Iterator<? extends T> iter = iterable.iterator();
        if (!iter.hasNext())
            return null;
        final T result = iter.next();
        if (iter.hasNext()) {
            throw new IllegalArgumentException("More than (expected) one element in " + iterable);
        }
        return result;
    }
}