Here you can find the source of removeDuplicates(List
public static void removeDuplicates(List<String> list)
//package com.java2s; /*/*from w w w .j a va 2 s. c o m*/ * Copyright 2011 Jonas Bengtsson * * 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.List; public class Main { public static void removeDuplicates(List<String> list) { for (int i = 0; i < list.size(); i++) { int j = i + 1; while (j < list.size()) { if (list.get(i).equals(list.get(j))) { list.remove(j); } else { j++; } } } } }