IO

Class FileOutput

java.lang.Object

IO.FileOutput

public class FileOutput
extends java.lang.Object

Convenience class for printing to a file or to the console. No exceptions which must be caught are thrown. The functionality is similar to java.io.PrintWriter.

Constructor Summary

Constructors

Constructor and Description
FileOutput() Open an output channel to the console.
FileOutput(java.lang.String outputFileName) Open the output file.

Method Summary

Modifier and Type	Method and Description
void	close() Close the output file or channel.
void	print(char c) Print a char to the output file or channel.
void	print(double d) Print a double to the output file or channel.
void	print(int i) Print an int to the output file or channel.
void	print(java.lang.Object o) Print an Object, e.g., a String, to the output file or channel.
void	print(java.lang.String fmt, double d) Print a formatted double to the output file or channel.
void	print(java.lang.String fmt, double[] da) Print a formatted double [] to the output file or channel.
void	print(java.lang.String fmt, int i) Print a formatted int to the output file or channel.
void	print(java.lang.String fmt, int[] ia) Print a formatted int [] to the output file or channel.
void	print(java.lang.String fmt, java.lang.String s) Print a formatted String to the output file or channel.
void	print(java.lang.String fmt, java.lang.String[] sa) Print a formatted String [] to the output file or channel.
void	println() Print a line-feed character to the output file or channel.
void	println(char c) Print a char and line-feed character to the output file or channel.
void	println(double d) Print a double and line-feed character to the output file or channel.
void	println(int i) Print an int and line-feed character to the output file or channel.
void	println(java.lang.Object o) Print an Object, e.g., a String, and line-feed character to the output file or channel.
void	println(java.lang.String fmt, double d) Print a formatted double and line-feed character to the output file or channel.
void	println(java.lang.String fmt, double[] da) Print a formatted double [] and line-feed character to the output file or channel.
void	println(java.lang.String fmt, int i) Print a formatted int and line-feed character to the output file or channel.
void	println(java.lang.String fmt, int[] ia) Print a formatted int [] and line-feed character to the output file or channel.
void	println(java.lang.String fmt, java.lang.String s) Print a formatted String and line-feed character to the output file or channel.
void	println(java.lang.String fmt, java.lang.String[] sa) Print a formatted String [] and line-feed character to the output file or channel.

Methods inherited from class java.lang.Object

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

Constructor Detail

FileOutput

public FileOutput(java.lang.String outputFileName)

Open the output file. Execution will be terminated if there is an error.

Parameters:

outputFileName - The output file name.

FileOutput

public FileOutput()

Open an output channel to the console.

Method Detail

close

public void close()

Close the output file or channel.

print

public void print(int i)

Print an int to the output file or channel.

Parameters:

i - The int to print.

print

public void print(double d)

Print a double to the output file or channel.

Parameters:

d - The double to print.

print

public void print(char c)

Print a char to the output file or channel.

Parameters:

c - The char to print.

print

public void print(java.lang.Object o)

Print an Object, e.g., a String, to the output file or channel.

Parameters:

o - The Object to print.

print

public void print(java.lang.String fmt,
                  int i)

Print a formatted int to the output file or channel.

Parameters:

fmt - The format String, e.g., "%5d".

i - The int to print.

print

public void print(java.lang.String fmt,
                  double d)

Print a formatted double to the output file or channel.

Parameters:

fmt - The format String, e.g., "%6.2f".

d - The double to print.

print

public void print(java.lang.String fmt,
                  java.lang.String s)

Print a formatted String to the output file or channel.

Parameters:

fmt - The format String, e.g., "%12s".

s - The String to print.

print

public void print(java.lang.String fmt,
                  int[] ia)

Print a formatted int [] to the output file or channel.

Parameters:

fmt - The format String, e.g., "%5d". Note that fmt refers to a single array element, and that each array element is front-padded with two spaces.

ia - The int [] to print.

print

public void print(java.lang.String fmt,
                  double[] da)

Print a formatted double [] to the output file or channel.

Parameters:

fmt - The format String, e.g., "%6.2f". Note that fmt refers to a single array element, and that each array element is front-padded with two spaces.

da - The double [] to print.

print

public void print(java.lang.String fmt,
                  java.lang.String[] sa)

Print a formatted String [] to the output file or channel.

Parameters:

fmt - The format String, e.g., "%12s". Note that fmt refers to a single array element, and that each array element is front-padded with two spaces.

sa - The String [] to print.

println

public void println()

Print a line-feed character to the output file or channel.

println

public void println(int i)

Print an int and line-feed character to the output file or channel.

Parameters:

i - The int to print.

println

public void println(double d)

Print a double and line-feed character to the output file or channel.

Parameters:

d - The double to print.

println

public void println(char c)

Print a char and line-feed character to the output file or channel.

Parameters:

c - The char to print.

println

public void println(java.lang.Object o)

Print an Object, e.g., a String, and line-feed character to the output file or channel.

Parameters:

o - The Object to print.

println

public void println(java.lang.String fmt,
                    int i)

Print a formatted int and line-feed character to the output file or channel.

Parameters:

fmt - The format String, e.g., "%5d".

i - The int to print.

println

public void println(java.lang.String fmt,
                    double d)

Print a formatted double and line-feed character to the output file or channel.

Parameters:

fmt - The format String, e.g., "%6.2f".

d - The double to print.

println

public void println(java.lang.String fmt,
                    java.lang.String s)

Print a formatted String and line-feed character to the output file or channel.

Parameters:

fmt - The format String, e.g., "%12s".

s - The String to print.

println

public void println(java.lang.String fmt,
                    int[] ia)

Print a formatted int [] and line-feed character to the output file or channel.

Parameters:

fmt - The format String, e.g., "%5d". Note that fmt refers to a single array element, and that each array element is front-padded with two spaces.

ia - The int [] to print.

println

public void println(java.lang.String fmt,
                    double[] da)

Print a formatted double [] and line-feed character to the output file or channel.

Parameters:

fmt - The format String, e.g., "%6.2f". Note that fmt refers to a single array element, and that each array element is front-padded with two spaces.

da - The double [] to print.

println

public void println(java.lang.String fmt,
                    java.lang.String[] sa)

Print a formatted String [] and line-feed character to the output file or channel.

Parameters:

fmt - The format String, e.g., "%12s". Note that fmt refers to a single array element, and that each array element is front-padded with two spaces.

sa - The String [] to print.