CharArrayWriter append(CharSequence) in Java

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

Syntax:

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

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

Parameters: One parameter is required for this method.

csq: The character sequence to append.

Note: If csq is null, then the four characters "null" are appended to this writer.

Returns: This writer.

Exceptions: NA

Approach

Java

import java.io.CharArrayWriter;
import java.io.IOException;

public class CharArrayWriterappend2 {
    public static void main(String[] args) throws IOException {
        CharArrayWriter charArrayWriter = new CharArrayWriter();

        char cbuf[] = { 'a', 'b', 'c' };
        charArrayWriter.write(cbuf);

        CharSequence csq = "ABCD";
        charArrayWriter.append(csq);
        System.out.println(charArrayWriter.toString());
        charArrayWriter.close();
    }
}

Output:

abcABCD