PrintStream append(CharSequence) in Java

append(CharSequence): This method is available in the java.io.PrintStream class of Java.

Syntax:

PrintStream java.io.PrintStream.append(CharSequence csq)

This method takes one argument. This method appends the specified character sequence to this output stream.

Depending on the specification of toString for the character sequence csq, The entire sequence may not be appended. For instance, invoking then toString method of a character buffer will return a subsequence whose content depends upon the buffer's position and limit.

Parameters: One parameter is required for this method.

csq: The character sequence to append. If csq is null, then the four characters "null" are appended to this output stream.

Returns: This output stream.

Exceptions: NA

Approach

Java

import java.io.File;
import java.io.FileNotFoundException;
import java.io.PrintStream;

public class PrintStreamappend2 {
    public static void main(String[] args) 
                      throws FileNotFoundException {

        File file = new File("D:\\hello.txt");
        PrintStream printStream = new PrintStream(file);

        CharSequence csq = new String("Hello");
        printStream.append(csq);

        System.out.println("Successfully appended");
        printStream.close();
    }
}

Output:

Successfully appended

hello.txt

Hello

Some other methods of PrintStream

append(char): This method appends the specified character to this output stream.

append(CharSequence): This method appends the specified character sequence to this output stream.

append(CharSequence, int, int): This method appends a subsequence of the specified character sequence to this output stream.

checkError(): This method flushes the stream and checks its error state.

close(): This is done by flushing the stream and then closing the underlying output stream.

flush(): This method flushes the stream.

format(String, Object...): This method writes a formatted string to this output stream using the specified format string and arguments.

format(Locale, String, Object...): This method writes a formatted string to this output stream using the specified format string and arguments.

print(boolean): This method prints a boolean value.

printf(String, Object...): It is a convenient method to write a formatted string to this output stream using the specified format string and arguments.

printf(Locale, String, Object...): It is a convenient method to write a formatted string to this output stream using the specified format string and arguments.

println(): This method terminates the current line by writing the line separator string.

PrintStream(File): This method creates a new print stream, without automatic line flushing, with the specified file.

PrintStream(OutputStream, boolean, String): This method creates a new print stream, with the specified OutputStream, line flushing, and character encoding.

PrintStream(OutputStream): This method creates a new print stream, without automatic line flushing, with the specified OutputStream.

PrintStream(String): This method creates a new print stream, without automatic line flushing, with the specified file name.

PrintStream(File, Charset): This method creates a new print stream, without automatic line flushing, with the specified file and charset.

PrintStream(File, String): This method creates a new print stream, without automatic line flushing, with the specified file and charset.

PrintStream(OutputStream, boolean): This method creates a new print stream, with the specified OutputStream and line flushing.

PrintStream(String, Charset): This method creates a new print stream, without automatic line flushing, with the specified file name and charset.

PrintStream(String, String): This method creates a new print stream, without automatic line flushing, with the specified file name and charset.

PrintStream(OutputStream, boolean, Charset): This method creates a new print stream, with the specified OutputStream, line flushing, and charset.

write(byte[]):  This method writes all bytes from the specified byte array to this stream.

write(int): This method writes the specified byte to this stream.

write(byte[], int, int): This method writes len bytes from the specified byte array starting to offset off to this stream.

writeBytes(byte[]): This method writes all bytes from the specified byte array to this stream.