Java Path File Read nio readFromFile(String path)

Description

read From File

License

Apache License

Declaration

public static String readFromFile(String path) throws IOException 

Method Source Code

//package com.java2s;
/*/* www  . j av a2  s  .co  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.
 *
 */

import com.google.common.base.Preconditions;
import java.io.*;

import java.nio.file.Files;
import java.nio.file.Paths;

public class Main {
    public static String readFromFile(String path) throws IOException {
        Preconditions.checkArgument(Files.exists(Paths.get(path)), "File '" + path + "' does not exist");
        StringBuilder sb = new StringBuilder("");
        try (BufferedReader reader = new BufferedReader(new FileReader(path))) {
            String line = reader.readLine();
            while (line != null) {
                line = line.trim();
                if (!"".equals(line)) {
                    sb.append(line).append("\n");
                }
                line = reader.readLine();
            }
            return sb.toString();
        }
    }
}

Related

1. readFileRows(Path path)
2. readFileToSingleString(String path)
3. readFileToString(@Nonnull Path file)
4. readFromFile(Path absolutePath)
5. readFromFile(String path)
6. readFully(Path filePath)
7. readIntsFromFile(String filePath)
8. readJson(Class dataClass, Path path)
9. readJsonObject(Path path, TypeReference typeReference)