Java Utililty Methods Text File Read Line

List of utility methods to do Text File Read Line

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Description

The list of methods to do Text File Read Line are organized into topic(s).

Method

ListreadLines(File file)
read Lines 
BufferedReader br = null;
try {
    List<String> lines = newArrayList();
    if (!file.exists()) {
        throw new FileNotFoundException();
    br = new BufferedReader(new FileReader(file));
    String line = br.readLine();
...
ListreadLines(File file, boolean ignoreComments)
read Lines 
if (!file.exists() || !file.isFile()) {
    return new ArrayList<>();
List<String> lines = new ArrayList<>();
BufferedReader reader = null;
try {
    reader = new BufferedReader(new FileReader(file));
    String line;
...
String[]readLines(File file, int maxArraySize)
read Lines 
try (FileInputStream in = new FileInputStream(file)) {
    return readLines(in, maxArraySize);
ListreadLines(File file, String charset)
Reads lines from a file. 
FileInputStream fis = new FileInputStream(file);
try {
    return readLines(fis, charset);
} finally {
    if (fis != null) {
        fis.close();
ListreadLines(File file, String charsetName)
read Lines 
List<String> lines = new ArrayList<String>();
if (file.exists()) {
    InputStream in = null;
    Reader reader = null;
    BufferedReader bufferedReader = null;
    try {
        in = new FileInputStream(file);
        reader = charsetName == null ? new InputStreamReader(in) : new InputStreamReader(in, charsetName);
...
ListreadLines(File file, String encoding)
Get the contents of an InputStream as a list of Strings, one entry per line, using the specified character encoding. 
InputStreamReader reader = null;
try {
    reader = new InputStreamReader(openInputStream(file), encoding);
    return readLines(reader);
} finally {
    reader.close();
ListreadLines(File file, String encoding)

Reads the contents of a file line by line to a List of Strings. 

InputStream in = new FileInputStream(file);
try {
    return readLines(in, encoding);
} finally {
    closeQuietly(in);
StringBuilderreadLines(File file, String outputLineEnding)
read Lines 
StringBuilder data = new StringBuilder();
BufferedReader in = null;
try {
    in = new BufferedReader(new InputStreamReader(new FileInputStream(file), "UTF-8"));
    String str = "";
    while ((str = in.readLine()) != null) {
        data.append(str + outputLineEnding);
} finally {
    if (in != null) {
        in.close();
return data;
ListreadLines(File inputFile)
Reads the contents of the given ascii file. 
List<String> lines = new ArrayList<>();
try {
    BufferedReader input = new BufferedReader(new FileReader(inputFile));
    try {
        String line = input.readLine();
        while (line != null) {
            lines.add(line);
            line = input.readLine();
...
ListreadLines(File inputFile, String encoding)
Read a file into a list of lines 
try {
    List<String> result = new ArrayList<>();
    BufferedReader in = openForReading(inputFile, encoding);
    try {
        String line;
        while ((line = in.readLine()) != null) {
            result.add(line.trim());
    } finally {
        in.close();
    return result;
} catch (Exception e) {
    throw new RuntimeException(e);