Java Utililty Methods File Content Read

try {
    return getFileContent(new FileInputStream(fileName));
} catch (FileNotFoundException e1) {
    return "";

File file = new File(fileName);
FileInputStream fis = new FileInputStream(file);
BufferedInputStream bis = new BufferedInputStream(fis);
DataInputStream dis = new DataInputStream(bis);
StringBuffer content = new StringBuffer();
while (dis.available() != 0) {
    content.append(dis.readLine());
fis.close();
bis.close();
dis.close();
return content.toString();

List<String> result = new ArrayList<String>();
File aFile = new File(fileName);
if (!aFile.isFile()) {
    return result; 
BufferedReader reader = null;
try {
    reader = new BufferedReader(new FileReader(aFile));
...

BufferedReader reader = null;
StringBuilder fileContent = new StringBuilder();
try {
    File f = new File(fileName);
    reader = new BufferedReader(new FileReader(f));
    String line = "";
    while ((line = reader.readLine()) != null) {
        fileContent.append(line);
...

BufferedReader reader = null;
String tempData = "";
String eol = "\n\r";
try {
    String line;
    reader = new BufferedReader(new FileReader(filePath));
    while ((line = reader.readLine()) != null) {
        if (!tempData.equals("")) {
...

File file = new File(filePath);
if (!file.exists() || !file.isFile()) {
    return null;
StringBuffer content = new StringBuffer();
try {
    char[] temp = new char[1024];
    FileInputStream fileInputStream = new FileInputStream(file);
...

File f = new File(filepath);
BufferedReader reader = new BufferedReader(new FileReader(f));
String line;
String fileContent = "";
while ((line = reader.readLine()) != null) {
    fileContent += line;
reader.close();
...

File f = new File(fName);
String ret = "";
if (!f.exists()) {
    return ret;
try {
    BufferedReader br = new BufferedReader(new InputStreamReader(new FileInputStream(f)));
    String l;
...

List<String> strList = new ArrayList<String>();
try {
    File file = new File(path);
    InputStreamReader read = new InputStreamReader(new FileInputStream(file), "UTF-8");
    BufferedReader reader = new BufferedReader(read);
    String line;
    while ((line = reader.readLine()) != null) {
        strList.add(line);
...

BufferedReader site = new BufferedReader(new InputStreamReader(new FileInputStream(path)));
List<String> content = new ArrayList<String>();
String line = site.readLine();
while (line != null) {
    content.add(line);
    line = site.readLine();
site.close();
...