Android Text File Read getString(File file)

Description

Get string from file

Parameter

Parameter	Description
file	a text file

Return

string which contains content of the text file

Declaration

public static String getString(File file) throws IOException 

Method Source Code

//package com.java2s;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;

public class Main {
    /** Buffer size for InputStream */
    private static final int BUFF_SIZE = 2048;

    /**/*from w  w  w . j av a2s . com*/
     * Get string from an InputStream object
     * @param is
     * @return null if fail
     * @throws java.io.IOException problem with the InputStream object
     * @throws java.lang.NullPointerException null InputStream
     */
    public static String getString(InputStream is) throws IOException,
            NullPointerException {
        if (is == null)
            throw new NullPointerException("null InputStream object");

        char[] buf = new char[BUFF_SIZE];

        Reader r = new InputStreamReader(is, "UTF-8");
        StringBuilder s = new StringBuilder();

        while (true) {
            int n = r.read(buf);
            if (n < 0)
                break;
            s.append(buf, 0, n);
        }

        return s.toString();
    }

    /**
     * Get string from file
     * @param file a text file
     * @return string which contains content of the text file
     */
    public static String getString(File file) throws IOException {
        if (file == null)
            throw new NullPointerException("null file");

        StringBuilder sb = new StringBuilder();

        BufferedReader br = new BufferedReader(new FileReader(file));
        String line;

        while ((line = br.readLine()) != null) {
            sb.append(line);
            sb.append('\n');
        }

        return sb.toString();
    }
}

Related

1. readText(String path)
2. readTextFile(String filePath)
3. readTextFile(String path)
4. setFileResourceText(String path, String content)
5. getContent(String file, String encodType)
6. readFileSdcard(File file)
7. readFromFile(Context context, String fileName)
8. loadTextFile(Context context, String textFile)