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## 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

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 aInt)`
`StringBuffer` | `append(long aLong)`
`StringBuffer` | `append(Object aObject)`
`StringBuffer` | `append(String s)`
`char` | `charAt(int i)`
`StringBuffer` | `delete(int start, int end)`
`char[]` | `getChars()` Retrieves the contents of the StringBuffer in the form of an array of characters.
`int` | `length()`
`String` | `toString()` Returns the empty string.

Methods inherited from class java.lang.Object
`equals, getClass, hashCode, notify, notifyAll, wait, wait`

Constructor Detail

### StringBuffer

    public StringBuffer()

### StringBuffer

    public StringBuffer(String aString)

### StringBuffer

    public StringBuffer(int length)

Method Detail

### 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 aInt)

### append

    public StringBuffer append(long aLong)

### append

    public StringBuffer append(float aFloat)

### append

    public StringBuffer append(double aDouble)

### toString

    public String toString()

  Description copied from class: `Object`
  Returns the empty string. It's here to satisfy javac.

  Overrides:
    `toString` in class `Object`

### charAt

    public char charAt(int i)

### length

    public int length()

### getChars

    public char[] getChars()

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

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