Here you can find the source of newInstance(String className)
public static <T> T newInstance(String className) throws ClassNotFoundException, IllegalAccessException, InstantiationException
//package com.java2s; /*/*from w w w . j a va2s . c o m*/ * Copyright 2016 Hortonworks. * * 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 <T> T newInstance(String className) throws ClassNotFoundException, IllegalAccessException, InstantiationException { return (T) Class.forName(className).newInstance(); } }