Java tutorial
//package com.java2s; /* * Copyright 2012 Sebastian Annies, Hamburg * * 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. */ public class Main { /** * Casts a long to an int. In many cases I use a long for a UInt32 but this cannot be used to allocate * ByteBuffers or arrays since they restricted to <code>Integer.MAX_VALUE</code> this cast-method will throw * a RuntimeException if the cast would cause a loss of information. * * @param l the long value * @return the long value as int */ public static int l2i(long l) { if (l > Integer.MAX_VALUE || l < Integer.MIN_VALUE) { throw new RuntimeException( "A cast to int has gone wrong. Please contact the mp4parser discussion group (" + l + ")"); } return (int) l; } }