Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2007 DSource.org and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     Bruno Medeiros - initial implementation
 *******************************************************************************/

import java.util.Iterator;

import java.util.function.Predicate;

public class Main {
    /**
     * @return the index in the iteration order of the first element that matches given predicate, or -1 otherwise.
     */
    public static <T> int indexUntil(Iterator<? extends T> iterator, Predicate<T> predicate) {
        int ix = 0;
        while (iterator.hasNext()) {
            T element = iterator.next();
            if (predicate.test(element)) {
                return ix;
            }
            ix++;
        }
        return -1;
    }
}