Java tutorial
//package com.java2s; /* * Copyright 2015 Yan Zhenjie * * 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.io.BufferedInputStream; import java.io.BufferedReader; import java.io.IOException; import java.io.InputStream; import java.io.Reader; public class Main { public static boolean contentEquals(InputStream input1, InputStream input2) throws IOException { input1 = toBufferedInputStream(input1); input2 = toBufferedInputStream(input2); int ch = input1.read(); while (-1 != ch) { int ch2 = input2.read(); if (ch != ch2) { return false; } ch = input1.read(); } int ch2 = input2.read(); return ch2 == -1; } public static boolean contentEquals(Reader input1, Reader input2) throws IOException { input1 = toBufferedReader(input1); input2 = toBufferedReader(input2); int ch = input1.read(); while (-1 != ch) { int ch2 = input2.read(); if (ch != ch2) { return false; } ch = input1.read(); } int ch2 = input2.read(); return ch2 == -1; } public static BufferedInputStream toBufferedInputStream(InputStream inputStream) { return inputStream instanceof BufferedInputStream ? (BufferedInputStream) inputStream : new BufferedInputStream(inputStream); } public static BufferedReader toBufferedReader(Reader reader) { return reader instanceof BufferedReader ? (BufferedReader) reader : new BufferedReader(reader); } }