java.lang
Class StringBuilder

java.lang.Object
  java.lang.StringBuilder

public class StringBuilder
extends Object

An expandable string of characters. Actually not very expandable! 09/25/2001 added number formatting thanks to Martin E. Nielsen. You must ensure that the buffer is large enough to take the formatted number.

Author:

Martin E. Nielsen, Sven Köhler

Constructor Summary

StringBuilder()

StringBuilder(int length)

StringBuilder(String aString)

Method Summary

StringBuilder	append(boolean aBoolean)
StringBuilder	append(char aChar)
StringBuilder	append(double aDouble)
StringBuilder	append(float aFloat)
StringBuilder	append(int i)
StringBuilder	append(long aLong)
StringBuilder	append(Object aObject)
StringBuilder	append(String s)
char	charAt(int i)
StringBuilder	delete(int start, int end)
void	ensureCapacity(int minCapacity)
char[]	getChars() Retrieves the contents of the StringBuilder in the form of an array of characters.
int	indexOf(String str)
int	indexOf(String str, int fromIndex)
int	lastIndexOf(String str)
int	lastIndexOf(String str, int fromIndex)
int	length()
void	setCharAt(int i, char ch)
String	substring(int start)
String	substring(int start, int end)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

StringBuilder

public StringBuilder()

StringBuilder

public StringBuilder(String aString)

StringBuilder

public StringBuilder(int length)

Method Detail

ensureCapacity

public void ensureCapacity(int minCapacity)

delete

public StringBuilder delete(int start,
                            int end)

append

public StringBuilder append(String s)

append

public StringBuilder append(Object aObject)

append

public StringBuilder append(boolean aBoolean)

append

public StringBuilder append(char aChar)

append

public StringBuilder append(int i)

append

public StringBuilder append(long aLong)

append

public StringBuilder append(float aFloat)

append

public StringBuilder append(double aDouble)

indexOf

public int indexOf(String str)

indexOf

public int indexOf(String str,
                   int fromIndex)

lastIndexOf

public int lastIndexOf(String str)

lastIndexOf

public int lastIndexOf(String str,
                       int fromIndex)

toString

public String toString()

Overrides:

toString in class Object

charAt

public char charAt(int i)

setCharAt

public void setCharAt(int i,
                      char ch)

length

public int length()

getChars

public char[] getChars()

Retrieves the contents of the StringBuilder in the form of an array of characters.

substring

public String substring(int start)

substring

public String substring(int start,
                        int end)