iicm.vrml.pwutils
Class CharArray

java.lang.Object
  iicm.vrml.pwutils.CharArray

public class CharArray
extends java.lang.Object

CharArray - dynamic array of char type values better time and memory efficiency than Vector, char[] accessible in native code Copyright (c) 1996 IICM

Version:

0.1, latest change: 1 Okt 96

Author:

Michael Pichler, Karin Roschker, (based on Field macro by Gerald Pani)

Field Summary

private int	count_
private char[]	data_

Constructor Summary

CharArray()
create with default length

CharArray(char[] dat)
copy initial data from another char[].

CharArray(CharArray dat)
copy initial data from another CharArray (non-null).

CharArray(int len)
create with initial buffer length

Method Summary

void	append(char d) append one char element
boolean	clearData() clear the array
private void	enlarge(int newsize) enlarge the data array to its new size; does not change count_
int	getCount() get count of used array members.
char[]	getData() get data array.
void	setData(char[] dat) copy data from a char[]
void	setData(char[] dat, int n) copy first n elements of a char[]
void	setData(CharArray dat) copy data from another CharArray
void	setSize(int n) set number of used array elements (ensures there is enough storage)
java.lang.String	toString() returns contents as String

Methods inherited from class java.lang.Object

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

Field Detail

data_

private char[] data_

count_

private int count_

Constructor Detail

CharArray

public CharArray()

create with default length

CharArray

public CharArray(int len)

create with initial buffer length

CharArray

public CharArray(char[] dat)

copy initial data from another char[]. To say it again: values in char[] are *copied* and not just referenced by this class

CharArray

public CharArray(CharArray dat)

copy initial data from another CharArray (non-null). do not use the above constructor in this case, as it would use all values, not just the used length (count); again: values are *copied*

Method Detail

setData

public void setData(CharArray dat)

copy data from another CharArray

setData

public void setData(char[] dat)

copy data from a char[]

setData

public void setData(char[] dat,
                    int n)

copy first n elements of a char[]

getCount

public final int getCount()

get count of used array members. Note: may be smaller than data_.length

getData

public final char[] getData()

get data array. Only elements 0 to (getCount () - 1) were set by user. Subsequent calls (after enlargement) may return a different array object

append

public void append(char d)

append one char element

setSize

public void setSize(int n)

set number of used array elements (ensures there is enough storage)

clearData

public boolean clearData()

clear the array

Returns:

true if the array was previously non-empty

toString

public java.lang.String toString()

returns contents as String

Overrides:

toString in class java.lang.Object

enlarge

private void enlarge(int newsize)

enlarge the data array to its new size; does not change count_