UnsupportedEncodingException in Java

UnsupportedEncodingException:

java.io.UnsupportedEncodingException

Character Encoding is not supported.

Approach

Java

import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;

public class UnsupportedEncodingExceptionExample {
    @SuppressWarnings("resource")
    public static void main(String[] args) throws IOException {
        File file = new File("D:\\hello.txt");
        InputStream in = new FileInputStream(file);
        String charsetName = "UTF-81919";
        InputStreamReader inputStreamReader = null;
        try {
            inputStreamReader = new InputStreamReader(in, charsetName);
        } catch (UnsupportedEncodingException e) {
            System.out.println("UnsupportedEncodingException occurs");
            return;
        }

        System.out.println(inputStreamReader);
        inputStreamReader.close();
    }
}

Output:

UnsupportedEncodingException occurs

Constructor of UnsupportedEncodingException

Example 1:

java.io.UnsupportedEncodingException.UnsupportedEncodingException()

Constructs an UnsupportedEncodingException without a detailed message.

Java

import java.io.UnsupportedEncodingException;

public class UnsupportedEncodingExceptionExample {
    public static void main(String[] args) {

        UnsupportedEncodingException unsupportedEncodingException = 
                             new UnsupportedEncodingException();

        System.out.println(unsupportedEncodingException);
    }
}

Output:

java.io.UnsupportedEncodingException

Example 2:

java.io.UnsupportedEncodingException.UnsupportedEncodingException(String s)

Constructs an UnsupportedEncodingException with a detailed message.

Parameters:

1. s Describe the reason for the exception.

Java

import java.io.UnsupportedEncodingException;

public class UnsupportedEncodingExceptionExample {
    public static void main(String[] args) {

        UnsupportedEncodingException unsupportedEncodingException =
                 new UnsupportedEncodingException("message");

        System.out.println(unsupportedEncodingException);
    }
}

Output:

java.io.UnsupportedEncodingException: message

Some other Exceptions of java.io

EOFException: Signals that an end of file or end of the stream has been reached unexpectedly during input.

FileNotFoundException: Signals that an attempt to open the file denoted by a specified path name has failed.

InterruptedIOException: Signals that an I/O operation has been interrupted. 

InvalidClassException: Thrown when the Serialization runtime detects.

InvalidObjectException: Indicates that one or more deserialized objects failed validation tests.

IOError: Thrown when a serious I/O error has occurred.

IOException: Signals that an I/O exception of some sort has occurred.

NotActiveException: Thrown when serialization or deserialization is not active.

NotSerializableException: Thrown when an instance is required to have a Serializable interface.

ObjectStreamException: Superclass of all exceptions specific to Object Stream classes.

OptionalDataException: Exception indicating the failure of an object read operation due to unread primitive data, or the end of data belonging to a serialized object in the stream.

StreamCorruptedException: Thrown when control information that was read from an object stream violates internal consistency checks.

SyncFailedException: Signals that a sync operation has failed.

UncheckedIOException: Wraps an IOException with an unchecked exception.

UTFDataFormatException: Signals that a malformed string in modified UTF-8 format has been read in a data input stream or by any class that implements the data input interface.

WriteAbortedException: Signals that one of the ObjectStreamExceptions was thrown during a write operation.