540 return lastIndexOf(str, count);
541 }
542
543 /**
544 * @throws NullPointerException {@inheritDoc}
545 * @since 1.4
546 */
547 public synchronized int lastIndexOf(String str, int fromIndex) {
548 return String.lastIndexOf(value, 0, count,
549 str.toCharArray(), 0, str.length(), fromIndex);
550 }
551
552 /**
553 * @since JDK1.0.2
554 */
555 public synchronized StringBuffer reverse() {
556 super.reverse();
557 return this;
558 }
559
560 public synchronized String toString() {
561 return new String(value, 0, count);
562 }
563
564 /**
565 * Serializable fields for StringBuffer.
566 *
567 * @serialField value char[]
568 * The backing character array of this StringBuffer.
569 * @serialField count int
570 * The number of characters in this StringBuffer.
571 * @serialField shared boolean
572 * A flag indicating whether the backing array is shared.
573 * The value is ignored upon deserialization.
574 */
575 private static final java.io.ObjectStreamField[] serialPersistentFields =
576 {
577 new java.io.ObjectStreamField("value", char[].class),
578 new java.io.ObjectStreamField("count", Integer.TYPE),
579 new java.io.ObjectStreamField("shared", Boolean.TYPE),
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540 return lastIndexOf(str, count);
541 }
542
543 /**
544 * @throws NullPointerException {@inheritDoc}
545 * @since 1.4
546 */
547 public synchronized int lastIndexOf(String str, int fromIndex) {
548 return String.lastIndexOf(value, 0, count,
549 str.toCharArray(), 0, str.length(), fromIndex);
550 }
551
552 /**
553 * @since JDK1.0.2
554 */
555 public synchronized StringBuffer reverse() {
556 super.reverse();
557 return this;
558 }
559
560 /**
561 * @throws NullPointerException {@inheritDoc}
562 * @since 1.7
563 */
564 @Override
565 public synchronized StringBuffer join(String delimiter, Object first, Object... elements) {
566 super.join(delimiter, first, elements);
567 return this;
568 }
569
570 /**
571 * @throws NullPointerException {@inheritDoc}
572 * @since 1.7
573 */
574 @Override
575 public synchronized StringBuffer join(String delimiter, Object[] elements) {
576 super.join(delimiter, elements);
577 return this;
578 }
579
580 /**
581 * @throws NullPointerException {@inheritDoc}
582 * @since 1.7
583 */
584 @Override
585 public synchronized StringBuffer join(String delimiter, Iterable<?> elements) {
586 super.join(delimiter, elements);
587 return this;
588 }
589
590 public synchronized String toString() {
591 return new String(value, 0, count);
592 }
593
594 /**
595 * Serializable fields for StringBuffer.
596 *
597 * @serialField value char[]
598 * The backing character array of this StringBuffer.
599 * @serialField count int
600 * The number of characters in this StringBuffer.
601 * @serialField shared boolean
602 * A flag indicating whether the backing array is shared.
603 * The value is ignored upon deserialization.
604 */
605 private static final java.io.ObjectStreamField[] serialPersistentFields =
606 {
607 new java.io.ObjectStreamField("value", char[].class),
608 new java.io.ObjectStreamField("count", Integer.TYPE),
609 new java.io.ObjectStreamField("shared", Boolean.TYPE),
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