Java Reference
In-Depth Information
CONSTRUCTORS
public StringBuffer()
Creates a StringBuffer object with no characters in it and an initial capacity of 16 characters.
public StringBuffer( int capacity)
Constructs a StringBuffer object with no characters in it and an initial capacity specifi ed by
the argument.
Throws:
NegativeArraySizeException if length is less than 0. NegativeArraySizeException
is a derived class of RuntimeException, and so is an unchecked exception, which means it is
not required to be caught or declared in a throws clause.
public StringBuffer(String ordinaryString)
Constructs a string buffer so that it represents the same sequence of characters as the
ordinaryString argument; in other words, the initial content of the string buffer is a copy of
ordinaryString . The initial capacity of the string buffer is 16 plus the length of ordinaryString .
Throws:
NullPointerException if ordinaryString is null.
METHODS
public StringBuffer append( char [] charArray, int offset, int length)
Appends the string representation of the characters in charArray starting at
charArray[offset] and extending for a total of length characters. Note that the calling object
is changed and a reference to the changed calling object is returned.
Throws:
ArrayIndexOutOfBoundsException if offset and length are not consistent with the
range of charArray .
public StringBuffer append( char c)
Appends the character argument to the StringBuffer calling object and returns this longer
string.
public StringBuffer append( char [] charArray)
Appends the string representation of the char array argument to this string buffer. Note that the
calling object is changed and a reference to the changed calling object is returned.
public StringBuffer append( double d)
Appends the string representation of the double argument to the StringBuffer calling object
and returns this longer string.
public StringBuffer append( float d)
Appends the string representation of the float argument to the StringBuffer calling object
and returns this longer string.
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