Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
import com.google.common.base.Predicate;
import java.util.Collection;
import java.util.Iterator;
import static com.google.common.base.Preconditions.checkNotNull;
import static com.google.common.collect.Iterators.find;
import static com.google.common.collect.Iterators.forArray;

public class Main {
    /**
     * Return the first element in {@code iterator} that satisfies the given {@code predicate}.
     *
     * @param predicate the test; must not be {@code null}.
     * @param iterator  the source of values; must not be {@code null}.
     * @return the value, or {@code null} if nothing matched.
     */
    public static <T> T findFirst(Predicate<? super T> predicate, Iterator<T> iterator) {
        return find(iterator, predicate, null);
    }

    /**
     * Return the first element in {@code collection} that satisfies the given {@code predicate}.
     *
     * @param predicate  the test; must not be {@code null}.
     * @param collection the source of values; must not be {@code null}.
     * @return the value, or {@code null} if nothing matched.
     */
    public static <T> T findFirst(Predicate<? super T> predicate, Collection<T> collection) {
        return find(checkNotNull(collection.iterator()), predicate, null);
    }

    /**
     * Return the first element in {@code items} that satisfies the given {@code predicate}.
     *
     * @param predicate the test; must not be {@code null}.
     * @param items     the source of values; must not be {@code null}.
     * @return the value, or {@code null} if nothing matched.
     */
    public static <T> T findFirst(Predicate<? super T> predicate, T... items) {
        return findFirst(predicate, forArray(items));
    }
}