Question

Given an initialized string variable filename write a sequence of statements that append the line all is well to the file whose name is given by the variable make sure that the data written to the file has been flushed from its buffer and that any system resources used during the course of running these statements have been released. Do not concern yourself with any possible exceptions here—assume they are handled elsewhere.

Answer 1

Details below...

Step-by-step explanation:

import java.io.*;

import java.util.Locale;

//program to demonstrate PrintWriter

class PrintWriterDemo {

public static void main(String[] args)

{

String s="GeeksforGeeks";

// create a new writer

PrintWriter out = new PrintWriter(System.out);

char c[]={'G','E','E','K'};

//illustrating print(boolean b) method

out.print(true);

//illustrating print(int i) method

out.print(1);

//illustrating print(float f) method

out.print(4.533f);

//illustrating print(String s) method

out.print("GeeksforGeeks");

out.println();

//illustrating print(Object Obj) method

out.print(out);

out.println();

//illustrating append(CharSequence csq) method

out.append("Geek");

out.println();

//illustrating checkError() method

out.println(out.checkError());

//illustrating format() method

out.format(Locale.UK, "This is my %s program", s);

//illustrating flush method

out.flush();

//illustrating close method

out.close();

}

}