Java tutorial
//package com.java2s; /* * Copyright (c) 2015 [1076559197@qq.com | tchen0707@gmail.com] * * 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. */ import java.util.Locale; public class Main { static void checkPositive(int number, String name) { if (number <= 0) throw new IllegalArgumentException(String.format(Locale.CHINESE, "%s must not be null", name)); } }