Here you can find the source of startsWith(final String fullMethodName, final String prefix)
public static boolean startsWith(final String fullMethodName, final String prefix)
//package com.java2s; /*/*from w w w .j a va 2 s .c o m*/ * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you 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 boolean startsWith(final String fullMethodName, final String prefix) { final int length = prefix.length(); if (length >= fullMethodName.length()) { return false; } else { final char startingCharacter = fullMethodName.charAt(length); return fullMethodName.startsWith(prefix) && Character.isUpperCase(startingCharacter); } } }