AbstractStringBuilder

AbstractStringBuilder

java.lang

---

Java 5.0

appendable

This package-private class is the abstract superclass of StringBuffer and StringBuilder . Because this class is not public, you may not use it directly. It is included in this quick-reference to fully document the shared API of its two subclasses.

Note that many of the methods of this class are declared to return an AbstractStringBuilder object. StringBuilder and StringBuffer( ) override those methods and narrow the return type to StringBuilder or StringBuffer . (This is an example of " covariant returns," which are allowed in Java 5.0 and later.)

Figure 10-2. java.lang.AbstractStringBuilder

 abstract class  AbstractStringBuilder  implements Appendable, CharSequence {  // No Constructor   // Public Instance Methods  public AbstractStringBuilder  append  (char[ ]  str  );        public AbstractStringBuilder  append  (boolean  b  );        public AbstractStringBuilder  append  (char  c  );        public AbstractStringBuilder  append  (Object  obj  );        public AbstractStringBuilder  append  (CharSequence  s  );        public AbstractStringBuilder  append  (StringBuffer  sb  );        public AbstractStringBuilder  append  (String  str  );        public AbstractStringBuilder  append  (int  i  );        public AbstractStringBuilder  append  (double  d  );        public AbstractStringBuilder  append  (float  f  );        public AbstractStringBuilder  append  (long  l  );        public AbstractStringBuilder  append  (char[ ]  str  , int  offset  , int  len  );        public AbstractStringBuilder  append  (CharSequence  s  , int  start  , int  end  );        public AbstractStringBuilder  appendCodePoint  (int  codePoint  );        public int  capacity  ( );        public int  codePointAt  (int  index  );        public int  codePointBefore  (int  index  );        public int  codePointCount  (int  beginIndex  , int  endIndex  );        public AbstractStringBuilder  delete  (int  start  , int  end  );        public AbstractStringBuilder  deleteCharAt  (int  index  );        public void  ensureCapacity  (int  minimumCapacity  );        public void  getChars  (int  srcBegin  , int  srcEnd  , char[ ]  dst  , int  dstBegin  );        public int  indexOf  (String  str  );        public int  indexOf  (String  str  , int  fromIndex  );        public AbstractStringBuilder  insert  (int  offset  , char  c  );        public AbstractStringBuilder  insert  (int  offset  , boolean  b  );        public AbstractStringBuilder  insert  (int  dstOffset  , CharSequence  s  );        public AbstractStringBuilder  insert  (int  offset  , int  i  );        public AbstractStringBuilder  insert  (int  offset  , double  d  );        public AbstractStringBuilder  insert  (int  offset  , float  f  );        public AbstractStringBuilder  insert  (int  offset  , long  l  );        public AbstractStringBuilder  insert  (int  offset  , char[ ]  str  );        public AbstractStringBuilder  insert  (int  offset  , Object  obj  );        public AbstractStringBuilder  insert  (int  offset  , String  str  );        public AbstractStringBuilder  insert  (int  index  , char[ ]  str  , int  offset  , int  len  );        public AbstractStringBuilder  insert  (int  dstOffset  , CharSequence  s  , int  start  , int  end  );        public int  lastIndexOf  (String  str  );        public int  lastIndexOf  (String  str  , int  fromIndex  );        public int  offsetByCodePoints  (int  index  , int  codePointOffset  );        public AbstractStringBuilder  replace  (int  start  , int  end  , String  str  );        public AbstractStringBuilder  reverse  ( );        public void  setCharAt  (int  index  , char  ch  );        public void  setLength  (int  newLength  );        public String  substring  (int  start  );        public String  substring  (int  start  , int  end  );        public void  trimToSize  ( );  // Methods Implementing CharSequence  public char  charAt  (int  index  );        public int  length  ( );        public CharSequence  subSequence  (int  start  , int  end  );        public abstract String  toString  ( );   } 

Subclasses

StringBuffer , StringBuilder

Returned By

Too many methods to list.