Java Utililty Methods BufferedReader Read

File file = new File(fileName);
if (!file.exists()) {
    return null;
BufferedReader br = null;
StringBuilder res = new StringBuilder();
try {
    String sCurrentLine;
...

fileName

StringBuffer result = new StringBuffer();
BufferedReader in = new BufferedReader(new FileReader(fileName));
while (true) {
    String line = in.readLine();
    if (line == null) {
        break;
    } else {
        result.append(line + "\n");
...

BufferedReader br = new BufferedReader(new FileReader(fileName));
StringBuilder everything = new StringBuilder();
String line = "";
try {
    line = br.readLine();
    while (line != null) {
        everything.append(line + "\n");
        line = br.readLine();
...

String everything = "";
try (BufferedReader br = new BufferedReader(new FileReader(fileName))) {
    StringBuilder sb = new StringBuilder();
    String line = br.readLine();
    while (line != null) {
        sb.append(line);
        sb.append(System.lineSeparator());
        line = br.readLine();
...

BufferedReader br = new BufferedReader(new FileReader(fileName));
try {
    StringBuilder sb = new StringBuilder();
    String line = br.readLine();
    while (line != null) {
        sb.append(line);
        sb.append("\n");
        line = br.readLine();
...

BufferedReader bufferedReader = new BufferedReader(new FileReader(filename));
try {
    StringBuilder stringBuilder = new StringBuilder();
    String line = null;
    while ((line = bufferedReader.readLine()) != null) {
        stringBuilder.append(line).append("\n");
    return stringBuilder;
...

try {
    BufferedReader reader = new BufferedReader(new FileReader(filename));
    StringBuffer buffer = new StringBuffer();
    String line = reader.readLine();
    if (line != null) {
        buffer.append(line);
        while (true) {
            line = reader.readLine();
...

try {
    File f = new File(fileName);
    if (!f.exists() || f.isDirectory())
        throw new IOException("File does not exist! " + f);
    StringBuilder model = new StringBuilder(100);
    BufferedReader bfr = null;
    bfr = new BufferedReader(new FileReader(f));
    String line = null;
...

StringBuilder buf = new StringBuilder();
File xx = new File(filename);
if (!xx.canRead()) {
    int x = 0;
FileReader file = new FileReader(filename);
BufferedReader rdr = new BufferedReader(file);
String line;
...

StringBuffer buffer = new StringBuffer();
try {
    BufferedReader dataInput = new BufferedReader(new FileReader(new File(FileName)));
    String line;
    while ((line = dataInput.readLine()) != null) {
        buffer.append(line);
        buffer.append('\n');
    dataInput.close();
} catch (Exception ex) {
    ex.printStackTrace();
return buffer.toString();