Mega Code Archive
Returns the maximum value in a long-value array
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/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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.
*/
/**
* <p>Provides extra functionality for Java Number classes.</p>
*
* @author <a href="mailto:rand_mcneely@yahoo.com">Rand McNeely</a>
* @author Stephen Colebourne
* @author <a href="mailto:steve.downey@netfolio.com">Steve Downey</a>
* @author Eric Pugh
* @author Phil Steitz
* @author Matthew Hawthorne
* @author <a href="mailto:ggregory@seagullsw.com">Gary Gregory</a>
* @author <a href="mailto:fredrik@westermarck.com">Fredrik Westermarck</a>
* @since 2.0
* @version $Id: NumberUtils.java 609475 2008-01-06 23:58:59Z bayard $
*/
public class Main {
/**
* <p>Returns the maximum value in an array.</p>
*
* @param array an array, must not be null or empty
* @return the minimum value in the array
* @throws IllegalArgumentException if <code>array</code> is <code>null</code>
* @throws IllegalArgumentException if <code>array</code> is empty
*/
public static long max(long[] array) {
// Validates input
if (array == null) {
throw new IllegalArgumentException("The Array must not be null");
} else if (array.length == 0) {
throw new IllegalArgumentException("Array cannot be empty.");
}
// Finds and returns max
long max = array[0];
for (int j = 1; j < array.length; j++) {
if (array[j] > max) {
max = array[j];
}
}
return max;
}
}
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