Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.BufferedReader;

import java.io.File;

import java.io.FileReader;

import java.io.IOException;

public class Main {
    /**
     * Read file
     * 
     * @param filePath
     *            The path of the file
     * @return StringBuilder Return file content as StringBuffer, if the file
     *         doesn't exist return null
     */
    public static StringBuilder readFile(String filePath) {
        File file = new File(filePath);
        StringBuilder fileContent = new StringBuilder("");
        if (file != null && file.isFile()) {
            BufferedReader reader = null;
            try {
                reader = new BufferedReader(new FileReader(file));
                String line = null;
                while ((line = reader.readLine()) != null) {
                    if (!fileContent.toString().equals("")) {
                        fileContent.append("\r\n");
                    }
                    fileContent.append(line);
                }
                reader.close();
                return fileContent;
            } catch (IOException e) {
                throw new RuntimeException("IOException occurred. ", e);
            } finally {
                if (reader != null) {
                    try {
                        reader.close();
                    } catch (IOException e) {
                        throw new RuntimeException("IOException occurred. ", e);
                    }
                }
            }
        }
        return null;
    }
}