java.lang
Class StringBuffer

java.lang.Object
  java.lang.StringBuffer

public final class StringBuffer
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

StringBuffer()

StringBuffer(int length)

StringBuffer(String aString)

Method Summary

StringBuffer	append(boolean aBoolean)
StringBuffer	append(char aChar)
StringBuffer	append(double aDouble)
StringBuffer	append(float aFloat)
StringBuffer	append(int i)
StringBuffer	append(long aLong)
StringBuffer	append(Object aObject)
StringBuffer	append(String s)
char	charAt(int i)
StringBuffer	delete(int start, int end)
void	ensureCapacity(int minCapacity)
char[]	getChars() Retrieves the contents of the StringBuffer 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

StringBuffer

public StringBuffer()

StringBuffer

public StringBuffer(String aString)

StringBuffer

public StringBuffer(int length)

Method Detail

ensureCapacity

public void ensureCapacity(int minCapacity)

delete

public StringBuffer delete(int start,
                           int end)

append

public StringBuffer append(String s)

append

public StringBuffer append(Object aObject)

append

public StringBuffer append(boolean aBoolean)

append

public StringBuffer append(char aChar)

append

public StringBuffer append(int i)

append

public StringBuffer append(long aLong)

append

public StringBuffer append(float aFloat)

append

public StringBuffer 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 StringBuffer in the form of an array of characters.

substring

public String substring(int start)

substring

public String substring(int start,
                        int end)