// Fig. 29.14: StringBufferInsert.java
// StringBuffer methods insert, delete and deleteCharAt.

public class StringBufferInsert 
{
   public static void main( String args[] )
   {
      Object objectRef = "hello";  
      String string = "goodbye";  
      char charArray[] = { 'a', 'b', 'c', 'd', 'e', 'f' };
      boolean booleanValue = true;
      char characterValue = 'K';
      int integerValue = 7;
      long longValue = 10000000;
      float floatValue = 2.5f; // f suffix indicates that 2.5 is a float
      double doubleValue = 33.333;

      StringBuffer buffer = new StringBuffer();

      buffer.insert( 0, objectRef );
      buffer.insert( 0, "  " ); // each of these contains new line
      buffer.insert( 0, string );
      buffer.insert( 0, "  " );
      buffer.insert( 0, charArray );
      buffer.insert( 0, "  " );
      buffer.insert( 0, charArray, 3, 3 );
      buffer.insert( 0, "  " );
      buffer.insert( 0, booleanValue );
      buffer.insert( 0, "  " );
      buffer.insert( 0, characterValue );
      buffer.insert( 0, "  " );
      buffer.insert( 0, integerValue );
      buffer.insert( 0, "  " );
      buffer.insert( 0, longValue );
      buffer.insert( 0, "  " );
      buffer.insert( 0, floatValue );
      buffer.insert( 0, "  " );
      buffer.insert( 0, doubleValue );

      System.out.printf( 
         "buffer after inserts:\n%s\n\n", buffer.toString() );

      buffer.deleteCharAt( 10 ); // delete 5 in 2.5
      buffer.delete( 2, 6 ); // delete .333 in 33.333

      System.out.printf( 
         "buffer after deletes:\n%s\n", buffer.toString() );
   } // end main
} // end class StringBufferInsert

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