PrintWriter PrintWriter(String, String) in Java

PrintWriter(String, String): This method is available in the java.io.PrintWriter class of java.

Syntax:

java.io.PrintWriter.PrintWriter(String fileName, String csn) throws FileNotFoundException, UnsupportedEncodingException

This method takes two arguments. This method creates a new PrintWriter, without automatic line flushing, with the specified file name and charset.

Parameters: Two parameters are required for this method.

fileName: The name of the file to use as the destination of this writer. If the file exists then it will be truncated to zero sizes; otherwise, a new file will be created. The output will be written to the file and buffered.

csn: The name of a supported charset.

Throws:

1. FileNotFoundException - If the given string does not denote an existing, writable regular file and a new regular file of that name cannot be created, or if some other error occurs while opening or creating the file.

2. SecurityException - If a security manager is present and checkWrite(fileName) denies write access to the file.

3. UnsupportedEncodingException - If the named charset is not supported.

Approach 1: When no exception

Java

import java.io.IOException;
import java.io.PrintWriter;

public class PrintWriterPrintWriter9 {
    public static void main(String[] args) throws IOException {

        String fileName = "D:\\hello.txt";
        String csn = "UTF-8";

        PrintWriter printWriter = new PrintWriter(fileName, csn);

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

Output:

java.io.PrintWriter@4361bd48


Approach 2: UnsupportedEncodingException

Java

package com.PrintWriter;

import java.io.IOException;
import java.io.PrintWriter;

public class PrintWriterPrintWriter9 {
    public static void main(String[] args) throws IOException {

        String fileName = "D:\\hello.txt";
        String csn = "UTF-80000";

        PrintWriter printWriter =
new PrintWriter(fileName, csn);

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

Output:

Exception in thread "main" java.io.UnsupportedEncodingException: UTF-80000 at java.base/java.io.PrintWriter.toCharset(PrintWriter.java:89) at java.base/java.io.PrintWriter.<init>(PrintWriter.java:248) at com.PrintWriter.PrintWriterPrintWriter9.main(PrintWriterPrintWriter9.java:12)


Some other methods of PrintWriter

append(char)This method appends the specified character to this writer.

append(CharSequence)This method appends the specified character sequence to this writer.

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

checkError()This method flushes the stream if it's not closed and checks its error state.

close()This method closes the stream and releases any system resources associated with it.

flush()This method flushes the stream.

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

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

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

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

PrintWriter(File)This method creates a new PrintWriter, without automatic line flushing, with the specified file.

PrintWriter(Writer, boolean)This method creates a new PrintWriter.

PrintWriter(OutputStream, boolean, Charset)This method creates a new PrintWriter from an existing OutputStream.

PrintWriter(OutputStream)This method creates a new PrintWriter, without automatic line flushing, from an existing OutputStream.

PrintWriter(String)This method creates a new PrintWriter, without automatic line flushing, with the specified file name.

PrintWriter(Writer)This method creates a new PrintWriter, without automatic line flushing.

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

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

PrintWriter(OutputStream, boolean)This method creates a new PrintWriter from an existing OutputStream.

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

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

write(char[])This method writes an array of characters.

write(int)This method writes a single character.

write(String)This method writes a string

write(char[], int, int)This method writes A Portion of an array of characters.

write(String, int, int)This method writes a portion of a string.

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