All Packages  Class Hierarchy  This Package  Previous  Next  Index

Class java.lancs.BasicFileIo 

java.lang.Object
   |
   +----java.lancs.BasicFileIo
public class BasicFileIo
extends Object

Variable Index

o INPUT
Constant - input file
o OUTPUT
Constant - output file

Constructor Index

o BasicFileIo()
Constructor for BasicFileIo.
o BasicFileIo(int, String)
Constructor for BasicFileIo.

Method Index

o closeFile()
Close the current file
o openFile(int, String)
Open a file.
o print(boolean)
o print(char)
o print(double)
o print(float)
o print(int)
o print(long)
o print(String)
o println()
o println(boolean)
o println(char)
o println(double)
o println(float)
o println(int)
o println(long)
o println(String)
o readCharacter()
Read a character from the file, the first on the line
o readDouble()
read a double value from the file
o readFloat()
read a float value from the file
o readInteger()
read the next line from the file as an integer
o readString()
read the next line from the file as a String
o writeDouble(double, int, int)
output a double to the file in a field of a specified width
o writeFloat(float, int, int)
output a float to the file in a field of a specified width
o writeInteger(int, int)
Write an integer to the file

Variables

o INPUT 
 public static final int INPUT
Constant - input file

o OUTPUT 
 public static final int OUTPUT
Constant - output file

Constructors

o BasicFileIo 
 public BasicFileIo()
Constructor for BasicFileIo. Initialises the filetype to "unknown".

o BasicFileIo 
 public BasicFileIo(int t,
                    String name) throws IOException
Constructor for BasicFileIo.

Parameters:
t - The filetype - either INPUT or OUPUT
name - The filename as a string

Methods

o openFile 
 public void openFile(int t,
                      String name) throws IOException
Open a file. Can be opened for reading or writing

Parameters:
t - The filetype - either INPUT or OUPUT
name - The filename as a string
o closeFile 
 public void closeFile() throws IOException
Close the current file

o print 
 public void print(boolean b)
o print 
 public void print(char c)
o print 
 public void print(double d)
o print 
 public void print(float f)
o print 
 public void print(int i)
o print 
 public void print(long l)
o print 
 public void print(String s)
o println 
 public void println(boolean b)
o println 
 public void println(char c)
o println 
 public void println(double d)
o println 
 public void println(float f)
o println 
 public void println(int i)
o println 
 public void println(long l)
o println 
 public void println(String s)
o println 
 public void println()
o readString 
 public String readString() throws IOException
read the next line from the file as a String

Returns:
the line read from the file as a String
o readCharacter 
 public char readCharacter() throws IOException
Read a character from the file, the first on the line

Returns:
the first character on the next line
o readInteger 
 public int readInteger() throws IOException
read the next line from the file as an integer

Returns:
the line read from the file as an integer
o readFloat 
 public float readFloat() throws IOException
read a float value from the file

Returns:
the float value read from the file
o readDouble 
 public double readDouble() throws IOException
read a double value from the file

Returns:
the double value read from the file
o writeInteger 
 public void writeInteger(int n,
                          int w)
Write an integer to the file

Parameters:
n - The integer to be written
w - The width of the field to write the integer in
o writeFloat 
 public void writeFloat(float n,
                        int w,
                        int d) throws IOException
output a float to the file in a field of a specified width

Parameters:
n - the float to be output to the file
w - the width of the field
d - the number of decimal places
o writeDouble 
 public void writeDouble(double n,
                         int w,
                         int d) throws IOException
output a double to the file in a field of a specified width

Parameters:
n - the double to be output to the file
w - the width of the field
d - the number of decimal places 
All Packages  Class Hierarchy  This Package  Previous  Next  Index