Here you can find the source of getMethod(Class clazz, String name, Class... parameterTypes)
public static Method getMethod(Class<?> clazz, String name, Class<?>... parameterTypes)
//package com.java2s; /******************************************************************************* * Breakout Cave Survey Visualizer/*from w ww . j a v a 2 s. c o m*/ * * Copyright (C) 2014 James Edwards * * jedwards8 at fastmail dot fm * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *******************************************************************************/ import java.lang.reflect.Method; import java.util.Arrays; public class Main { /** * Searches all public, protected, package access, and private methods of a class and its superclasses for a method with the given name and parameter types. * {@link Class#getMethod(String, Class...)} only searches public members declared in the class. */ public static Method getMethod(Class<?> clazz, String name, Class<?>... parameterTypes) { while (clazz != null) { for (Method method : clazz.getDeclaredMethods()) { if (method.getName().equals(name) && Arrays.deepEquals(method.getParameterTypes(), parameterTypes)) { return method; } } clazz = clazz.getSuperclass(); } return null; } }