com.skylit.io
Class EasyWriter

java.lang.Object
  com.skylit.io.EasyWriter

public class EasyWriter

extends java.lang.Object

EasyWriter provides simple methods for opening and * writing to text files. All exceptions are handled * inside the class and are hidden from the user. * *

* Example: * ======= * * EasyWriter outFile = new EasyWriter("anyname.txt"); * if (outFile.bad()) * { * System.err.println("Can't create anyname.txt\n"); * System.exit(1); * } * outFile.print("2 + 2 = "); * outFile.println(4); * outFile.println(); // an extra blank line * outFile.close(); // optional * * @author Gary Litvin * @version 1.1

Field Summary

protected static int	CLOSEERROR
protected int	myErrorFlags
protected java.lang.String	myFileName
protected java.io.PrintWriter	myOutFile
protected static int	OPENERROR
protected static int	WRITEERROR

Constructor Summary

EasyWriter(java.lang.String fileName)
Constructor.

EasyWriter(java.lang.String fileName, java.lang.String mode)
Constructor.

Method Summary

boolean	bad() Checks the status of the file * @return true if en error occurred opening or writing to the file, * false otherwise
void	close() Closes the file
void	print(char ch) Writes one character to the file * @param ch character to be written
void	print(double x) Writes a double to the file * @param x number to be written
void	print(int k) Writes an integer to the file * @param k number to be written
void	print(java.lang.String s) Writes a string to the file * @param s string to be written
void	println() Writes a newline character to the file
void	println(char ch) Writes one character and newline to the file * @param ch character to be written
void	println(double x) Writes a double and newline to the file * @param x number to be written
void	println(int k) Writes an integer and newline to the file * @param k number to be written
void	println(java.lang.String s) Writes a string and newline to the file * @param s string to be written

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

myFileName

protected java.lang.String myFileName

myOutFile

protected java.io.PrintWriter myOutFile

myErrorFlags

protected int myErrorFlags

OPENERROR

protected static final int OPENERROR

See Also:

Constant Field Values

CLOSEERROR

protected static final int CLOSEERROR

See Also:

Constant Field Values

WRITEERROR

protected static final int WRITEERROR

See Also:

Constant Field Values

Constructor Detail

EasyWriter

public EasyWriter(java.lang.String fileName)

Constructor. Creates a new file (or truncates an existing file) * @param fileName the name of the file to be created

EasyWriter

public EasyWriter(java.lang.String fileName,
                  java.lang.String mode)

Constructor. Creates a new file. If the file exists * can append to it. * @param fileName the name of the file to be created * @param mode if equals to "app" opens in append mode

Method Detail

close

public void close()

Closes the file

bad

public boolean bad()

Checks the status of the file * @return true if en error occurred opening or writing to the file, * false otherwise

print

public void print(char ch)

Writes one character to the file * @param ch character to be written

print

public void print(int k)

Writes an integer to the file * @param k number to be written

print

public void print(double x)

Writes a double to the file * @param x number to be written

print

public void print(java.lang.String s)

Writes a string to the file * @param s string to be written

println

public void println()

Writes a newline character to the file

println

public void println(char ch)

Writes one character and newline to the file * @param ch character to be written

println

public void println(int k)

Writes an integer and newline to the file * @param k number to be written

println

public void println(double x)

Writes a double and newline to the file * @param x number to be written

println

public void println(java.lang.String s)

Writes a string and newline to the file * @param s string to be written