Java tutorial
//package com.java2s; /* * Copyright (C) 2009 JavaRosa * * 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 { public static byte toByte(long l) { if (l < Byte.MIN_VALUE || l > Byte.MAX_VALUE) throw new ArithmeticException("Value (" + l + ") cannot fit into byte"); return (byte) l; } }