Class OutputDataFile

java.lang.Object

OutputDataFile

public class OutputDataFile
extends java.lang.Object

OutputDataFile is an class that represents a datafile for output.

Constructor Summary

Constructors

Constructor and Description
OutputDataFile(java.lang.String fname) Creates an output stream from the specified file name.
OutputDataFile(java.lang.String fname, boolean isAppend) Creates an output stream from the specified file name.

Method Summary

Modifier and Type	Method and Description
void	close() Closes the file.
java.lang.String	getName() Returns the file name.
boolean	isAppend() Returns true if data is appended to the existing file, false if it is not.
boolean	isOpen() Returns true if file has been opened for writing, false if it has not.
boolean	open() Opens the file for writing.
void	println(double d)
void	println(int i)
void	println(java.lang.String s)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

OutputDataFile

public OutputDataFile(java.lang.String fname)

Creates an output stream from the specified file name. By default data is not appended to the file, so if the file exists it is erase when it is opened.

OutputDataFile

public OutputDataFile(java.lang.String fname,
                      boolean isAppend)

Creates an output stream from the specified file name. If isAppend is true, data is appended to the file, so if the file exists it is NOT erased when it is opened.

Method Detail

getName

public java.lang.String getName()

Returns the file name.

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

isAppend

public boolean isAppend()

Returns true if data is appended to the existing file, false if it is not.

isOpen

public boolean isOpen()

Returns true if file has been opened for writing, false if it has not.

open

public boolean open()

Opens the file for writing. If append is false, the file is erased if it already exists. If append is true, any existing data remains and the new data is appended to the end of hte file.

println

public void println(java.lang.String s)

println

public void println(double d)

println

public void println(int i)

close

public void close()

Closes the file. This will cause all data to be flushed and stored in the file.