Main.java Source code

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Here is the source code for Main.java

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//package com.java2s;
/*
 * Copyright (C) 2009 The Guava Authors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.Collections;

import java.util.Iterator;

public class Main {
    static <T> Iterator<T> cycle(final Iterable<T> iterable) {
        return new Iterator<T>() {
            Iterator<T> iterator = Collections.<T>emptySet().iterator();

            @Override
            public boolean hasNext() {
                return true;
            }

            @Override
            public T next() {
                if (!iterator.hasNext()) {
                    iterator = iterable.iterator();
                }
                return iterator.next();
            }

            @Override
            public void remove() {
                throw new UnsupportedOperationException();
            }
        };
    }
}