Java Utililty Methods Is Readable File

List of utility methods to do Is Readable File

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Description

The list of methods to do Is Readable File are organized into topic(s).

Method

booleanisReachable(String internetProtocolAddress)
is Reachable 
List<String> command = new ArrayList<String>();
command.add("ping");
if (System.getProperty("os.name").startsWith("Windows"))
    command.add("-n");
} else {
    command.add("-c");
command.add("1");
command.add(internetProtocolAddress);
ProcessBuilder processBuilder = new ProcessBuilder(command);
Process process = processBuilder.start();
BufferedReader standardOutput = new BufferedReader(new InputStreamReader(process.getInputStream()));
String outputLine;
while ((outputLine = standardOutput.readLine()) != null) {
    if (outputLine.toLowerCase().contains("destination host unreachable")) {
        return false;
return true;
voidisReadable(File arcFile)
is Readable 
if (!arcFile.exists()) {
    throw new FileNotFoundException(arcFile.getAbsolutePath() + " does not exist.");
if (!arcFile.canRead()) {
    throw new FileNotFoundException(arcFile.getAbsolutePath() + " is not readable.");
booleanisReadable(String filename)
Determine if the given filename exists and is readable. 
if (filename == null) {
    return false;
File file = new File(filename);
return file.exists() && file.canRead();
booleanisReadableFile(File f)
is Readable File 
String msg;
if (!f.exists()) {
    msg = "Cannot find file: " + f;
    log.warn(msg);
    return false;
if (!f.canRead()) {
    msg = "Cannot read from file: " + f;
...
booleanisReadableFile(File file)
Returns whether the given file is non-null, a plain file and is readable. 
return file != null && file.isFile() && file.canRead();
booleanisReadableFile(File file)
Check the file can read or not 
return file != null && file.exists() && file.isFile() && file.canRead();
booleanisReadableFile(File file)
is Readable File 
try {
    return file != null && file.exists() && file.isFile() && file.canRead();
} catch (SecurityException se) {
    se.printStackTrace(System.err);
    return false;
booleanisReadableFile(File file)
Check if the passed File point to an existing file and can be read by the user. 
boolean state = true;
if (!file.exists() || !file.isFile()) {
    System.err.println(String.format("%s: does not exist", file.getName()));
    state = false;
} else if (!file.canRead()) {
    System.err.println(String.format("%s: no read permission", file.getName()));
    state = false;
return state;
booleanisReadableFile(File path)
Returns true if the specified path represents a readable file, false otherwise. 
return path.isFile() && path.canRead();
StringisReadableFile(final File f)
is Readable File 
if (!f.exists()) {
    return "\"" + f + "\" does not exist";
if (f.isDirectory()) {
    return "\"" + f + "\" is a directory";
if (!f.isFile()) {
    return "\"" + f + "\" is not a file";
...