Java tutorial
//package com.java2s; /* * Copyright (C) 2015 Karumi. * * 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.HashMap; public class Main { private static final HashMap<Class, Class> PRIMITIVE_WRAPPERS = new HashMap<>(); static boolean canAssign(Class<?> baseClass, Class<?> classToCheck) { if (baseClass.isAssignableFrom(classToCheck)) { return true; } else { if (baseClass.isPrimitive()) { Class primitiveClass = PRIMITIVE_WRAPPERS.get(classToCheck); if (primitiveClass != null) { return baseClass.isAssignableFrom(primitiveClass); } } else if (classToCheck.isPrimitive()) { Class primitiveClass = PRIMITIVE_WRAPPERS.get(baseClass); if (primitiveClass != null) { return primitiveClass.isAssignableFrom(classToCheck); } } } return false; } }