File	Doc	Category	Size	Date	Package
CharArrayIterator.java	API Doc	Java SE 5 API	4396	Fri Aug 26 14:56:50 BST 2005	java.awt.font

CharArrayIterator

• java.lang.Object

Fields Summary
private char[]	chars
private int	pos
private int	begin

Constructors Summary
CharArrayIterator(char[] chars) reset(chars, 0);
CharArrayIterator(char[] chars, int begin) reset(chars, begin);

Methods Summary
public java.lang.Object	clone() Create a copy of this iterator return A copy of this CharArrayIterator c = new CharArrayIterator(chars, begin); c.pos = this.pos; return c;
public char	current() Gets the character at the current position (as returned by getIndex()). return the character at the current position or DONE if the current position is off the end of the text. see getIndex if (pos >= 0 && pos < chars.length) { return chars[pos]; } else { return DONE; }
public char	first() Sets the position to getBeginIndex() and returns the character at that position. return the first character in the text, or DONE if the text is empty see getBeginIndex pos = 0; return current();
public int	getBeginIndex() Returns the start index of the text. return the index at which the text begins. return begin;
public int	getEndIndex() Returns the end index of the text. This index is the index of the first character following the end of the text. return the index after the last character in the text return begin+chars.length;
public int	getIndex() Returns the current index. return the current index. return begin+pos;
public char	last() Sets the position to getEndIndex()-1 (getEndIndex() if the text is empty) and returns the character at that position. return the last character in the text, or DONE if the text is empty see getEndIndex if (chars.length > 0) { pos = chars.length-1; } else { pos = 0; } return current();
public char	next() Increments the iterator's index by one and returns the character at the new index. If the resulting index is greater or equal to getEndIndex(), the current index is reset to getEndIndex() and a value of DONE is returned. return the character at the new position or DONE if the new position is off the end of the text range. if (pos < chars.length-1) { pos++; return chars[pos]; } else { pos = chars.length; return DONE; }
public char	previous() Decrements the iterator's index by one and returns the character at the new index. If the current index is getBeginIndex(), the index remains at getBeginIndex() and a value of DONE is returned. return the character at the new position or DONE if the current position is equal to getBeginIndex(). if (pos > 0) { pos--; return chars[pos]; } else { pos = 0; return DONE; }
void	reset(char[] chars) reset(chars, 0);
void	reset(char[] chars, int begin) this.chars = chars; this.begin = begin; pos = 0;
public char	setIndex(int position) Sets the position to the specified position in the text and returns that character. param position the position within the text. Valid values range from getBeginIndex() to getEndIndex(). An IllegalArgumentException is thrown if an invalid value is supplied. return the character at the specified position or DONE if the specified position is equal to getEndIndex() position -= begin; if (position < 0 || position > chars.length) { throw new IllegalArgumentException("Invalid index"); } pos = position; return current();