107 */
108 public StringBuilder(String str) {
109 super(str.length() + 16);
110 append(str);
111 }
112
113 /**
114 * Constructs a string builder that contains the same characters
115 * as the specified <code>CharSequence</code>. The initial capacity of
116 * the string builder is <code>16</code> plus the length of the
117 * <code>CharSequence</code> argument.
118 *
119 * @param seq the sequence to copy.
120 * @throws NullPointerException if <code>seq</code> is <code>null</code>
121 */
122 public StringBuilder(CharSequence seq) {
123 this(seq.length() + 16);
124 append(seq);
125 }
126
127 public StringBuilder append(Object obj) {
128 return append(String.valueOf(obj));
129 }
130
131 public StringBuilder append(String str) {
132 super.append(str);
133 return this;
134 }
135
136 // Appends the specified string builder to this sequence.
137 private StringBuilder append(StringBuilder sb) {
138 if (sb == null)
139 return append("null");
140 int len = sb.length();
141 int newcount = count + len;
142 if (newcount > value.length)
143 expandCapacity(newcount);
144 sb.getChars(0, len, value, count);
145 count = newcount;
146 return this;
147 }
148
149 /**
150 * Appends the specified <tt>StringBuffer</tt> to this sequence.
151 * <p>
152 * The characters of the <tt>StringBuffer</tt> argument are appended,
153 * in order, to this sequence, increasing the
154 * length of this sequence by the length of the argument.
155 * If <tt>sb</tt> is <tt>null</tt>, then the four characters
156 * <tt>"null"</tt> are appended to this sequence.
157 * <p>
158 * Let <i>n</i> be the length of this character sequence just prior to
159 * execution of the <tt>append</tt> method. Then the character at index
160 * <i>k</i> in the new character sequence is equal to the character at
161 * index <i>k</i> in the old character sequence, if <i>k</i> is less than
162 * <i>n</i>; otherwise, it is equal to the character at index <i>k-n</i>
163 * in the argument <code>sb</code>.
164 *
165 * @param sb the <tt>StringBuffer</tt> to append.
166 * @return a reference to this object.
167 */
168 public StringBuilder append(StringBuffer sb) {
169 super.append(sb);
170 return this;
171 }
172
173 /**
174 */
175 public StringBuilder append(CharSequence s) {
176 if (s == null)
177 s = "null";
178 if (s instanceof String)
179 return this.append((String)s);
180 if (s instanceof StringBuffer)
181 return this.append((StringBuffer)s);
182 if (s instanceof StringBuilder)
183 return this.append((StringBuilder)s);
184 return this.append(s, 0, s.length());
185 }
186
187 /**
188 * @throws IndexOutOfBoundsException {@inheritDoc}
189 */
190 public StringBuilder append(CharSequence s, int start, int end) {
191 super.append(s, start, end);
192 return this;
193 }
194
195 public StringBuilder append(char[] str) {
196 super.append(str);
197 return this;
198 }
199
200 /**
201 * @throws IndexOutOfBoundsException {@inheritDoc}
202 */
203 public StringBuilder append(char[] str, int offset, int len) {
204 super.append(str, offset, len);
205 return this;
206 }
207
208 public StringBuilder append(boolean b) {
209 super.append(b);
210 return this;
211 }
212
213 public StringBuilder append(char c) {
214 super.append(c);
215 return this;
216 }
217
218 public StringBuilder append(int i) {
219 super.append(i);
220 return this;
221 }
222
223 public StringBuilder append(long lng) {
224 super.append(lng);
225 return this;
226 }
227
228 public StringBuilder append(float f) {
229 super.append(f);
230 return this;
231 }
232
233 public StringBuilder append(double d) {
234 super.append(d);
235 return this;
236 }
237
238 /**
239 * @since 1.5
240 */
241 public StringBuilder appendCodePoint(int codePoint) {
242 super.appendCodePoint(codePoint);
243 return this;
244 }
245
246 /**
247 * @throws StringIndexOutOfBoundsException {@inheritDoc}
248 */
249 public StringBuilder delete(int start, int end) {
250 super.delete(start, end);
251 return this;
252 }
253
254 /**
255 * @throws StringIndexOutOfBoundsException {@inheritDoc}
256 */
257 public StringBuilder deleteCharAt(int index) {
258 super.deleteCharAt(index);
259 return this;
260 }
261
262 /**
263 * @throws StringIndexOutOfBoundsException {@inheritDoc}
264 */
265 public StringBuilder replace(int start, int end, String str) {
266 super.replace(start, end, str);
267 return this;
268 }
269
270 /**
271 * @throws StringIndexOutOfBoundsException {@inheritDoc}
272 */
273 public StringBuilder insert(int index, char[] str, int offset,
274 int len)
275 {
276 super.insert(index, str, offset, len);
277 return this;
278 }
279
280 /**
281 * @throws StringIndexOutOfBoundsException {@inheritDoc}
282 */
283 public StringBuilder insert(int offset, Object obj) {
284 return insert(offset, String.valueOf(obj));
285 }
286
287 /**
288 * @throws StringIndexOutOfBoundsException {@inheritDoc}
289 */
290 public StringBuilder insert(int offset, String str) {
291 super.insert(offset, str);
292 return this;
293 }
294
295 /**
296 * @throws StringIndexOutOfBoundsException {@inheritDoc}
297 */
298 public StringBuilder insert(int offset, char[] str) {
299 super.insert(offset, str);
300 return this;
301 }
302
303 /**
304 * @throws IndexOutOfBoundsException {@inheritDoc}
305 */
306 public StringBuilder insert(int dstOffset, CharSequence s) {
307 if (s == null)
308 s = "null";
309 if (s instanceof String)
310 return this.insert(dstOffset, (String)s);
311 return this.insert(dstOffset, s, 0, s.length());
312 }
313
314 /**
315 * @throws IndexOutOfBoundsException {@inheritDoc}
316 */
317 public StringBuilder insert(int dstOffset, CharSequence s,
318 int start, int end)
319 {
320 super.insert(dstOffset, s, start, end);
321 return this;
322 }
323
324 /**
325 * @throws StringIndexOutOfBoundsException {@inheritDoc}
326 */
327 public StringBuilder insert(int offset, boolean b) {
328 super.insert(offset, b);
329 return this;
330 }
331
332 /**
333 * @throws IndexOutOfBoundsException {@inheritDoc}
334 */
335 public StringBuilder insert(int offset, char c) {
336 super.insert(offset, c);
337 return this;
338 }
339
340 /**
341 * @throws StringIndexOutOfBoundsException {@inheritDoc}
342 */
343 public StringBuilder insert(int offset, int i) {
344 return insert(offset, String.valueOf(i));
345 }
346
347 /**
348 * @throws StringIndexOutOfBoundsException {@inheritDoc}
349 */
350 public StringBuilder insert(int offset, long l) {
351 return insert(offset, String.valueOf(l));
352 }
353
354 /**
355 * @throws StringIndexOutOfBoundsException {@inheritDoc}
356 */
357 public StringBuilder insert(int offset, float f) {
358 return insert(offset, String.valueOf(f));
359 }
360
361 /**
362 * @throws StringIndexOutOfBoundsException {@inheritDoc}
363 */
364 public StringBuilder insert(int offset, double d) {
365 return insert(offset, String.valueOf(d));
366 }
367
368 /**
369 * @throws NullPointerException {@inheritDoc}
370 */
371 public int indexOf(String str) {
372 return indexOf(str, 0);
373 }
374
375 /**
376 * @throws NullPointerException {@inheritDoc}
377 */
378 public int indexOf(String str, int fromIndex) {
379 return String.indexOf(value, 0, count,
380 str.toCharArray(), 0, str.length(), fromIndex);
381 }
382
383 /**
384 * @throws NullPointerException {@inheritDoc}
385 */
386 public int lastIndexOf(String str) {
387 return lastIndexOf(str, count);
388 }
389
390 /**
391 * @throws NullPointerException {@inheritDoc}
392 */
393 public int lastIndexOf(String str, int fromIndex) {
394 return String.lastIndexOf(value, 0, count,
395 str.toCharArray(), 0, str.length(), fromIndex);
396 }
397
398 public StringBuilder reverse() {
399 super.reverse();
400 return this;
401 }
402
403 public String toString() {
404 // Create a copy, don't share the array
405 return new String(value, 0, count);
406 }
407
408 /**
409 * Save the state of the <tt>StringBuilder</tt> instance to a stream
410 * (that is, serialize it).
411 *
412 * @serialData the number of characters currently stored in the string
413 * builder (<tt>int</tt>), followed by the characters in the
414 * string builder (<tt>char[]</tt>). The length of the
415 * <tt>char</tt> array may be greater than the number of
416 * characters currently stored in the string builder, in which
417 * case extra characters are ignored.
418 */
419 private void writeObject(java.io.ObjectOutputStream s)
420 throws java.io.IOException {
421 s.defaultWriteObject();
422 s.writeInt(count);
|
107 */
108 public StringBuilder(String str) {
109 super(str.length() + 16);
110 append(str);
111 }
112
113 /**
114 * Constructs a string builder that contains the same characters
115 * as the specified <code>CharSequence</code>. The initial capacity of
116 * the string builder is <code>16</code> plus the length of the
117 * <code>CharSequence</code> argument.
118 *
119 * @param seq the sequence to copy.
120 * @throws NullPointerException if <code>seq</code> is <code>null</code>
121 */
122 public StringBuilder(CharSequence seq) {
123 this(seq.length() + 16);
124 append(seq);
125 }
126
127 @Override
128 public StringBuilder append(Object obj) {
129 return append(String.valueOf(obj));
130 }
131
132 @Override
133 public StringBuilder append(String str) {
134 super.append(str);
135 return this;
136 }
137
138 /**
139 * Appends the specified <tt>StringBuffer</tt> to this sequence.
140 * <p>
141 * The characters of the <tt>StringBuffer</tt> argument are appended,
142 * in order, to this sequence, increasing the
143 * length of this sequence by the length of the argument.
144 * If <tt>sb</tt> is <tt>null</tt>, then the four characters
145 * <tt>"null"</tt> are appended to this sequence.
146 * <p>
147 * Let <i>n</i> be the length of this character sequence just prior to
148 * execution of the <tt>append</tt> method. Then the character at index
149 * <i>k</i> in the new character sequence is equal to the character at
150 * index <i>k</i> in the old character sequence, if <i>k</i> is less than
151 * <i>n</i>; otherwise, it is equal to the character at index <i>k-n</i>
152 * in the argument <code>sb</code>.
153 *
154 * @param sb the <tt>StringBuffer</tt> to append.
155 * @return a reference to this object.
156 */
157 public StringBuilder append(StringBuffer sb) {
158 super.append(sb);
159 return this;
160 }
161
162 @Override
163 public StringBuilder append(CharSequence s) {
164 super.append(s);
165 return this;
166 }
167
168 /**
169 * @throws IndexOutOfBoundsException {@inheritDoc}
170 */
171 @Override
172 public StringBuilder append(CharSequence s, int start, int end) {
173 super.append(s, start, end);
174 return this;
175 }
176
177 @Override
178 public StringBuilder append(char[] str) {
179 super.append(str);
180 return this;
181 }
182
183 /**
184 * @throws IndexOutOfBoundsException {@inheritDoc}
185 */
186 @Override
187 public StringBuilder append(char[] str, int offset, int len) {
188 super.append(str, offset, len);
189 return this;
190 }
191
192 @Override
193 public StringBuilder append(boolean b) {
194 super.append(b);
195 return this;
196 }
197
198 @Override
199 public StringBuilder append(char c) {
200 super.append(c);
201 return this;
202 }
203
204 @Override
205 public StringBuilder append(int i) {
206 super.append(i);
207 return this;
208 }
209
210 @Override
211 public StringBuilder append(long lng) {
212 super.append(lng);
213 return this;
214 }
215
216 @Override
217 public StringBuilder append(float f) {
218 super.append(f);
219 return this;
220 }
221
222 @Override
223 public StringBuilder append(double d) {
224 super.append(d);
225 return this;
226 }
227
228 /**
229 * @since 1.5
230 */
231 @Override
232 public StringBuilder appendCodePoint(int codePoint) {
233 super.appendCodePoint(codePoint);
234 return this;
235 }
236
237 /**
238 * @throws StringIndexOutOfBoundsException {@inheritDoc}
239 */
240 @Override
241 public StringBuilder delete(int start, int end) {
242 super.delete(start, end);
243 return this;
244 }
245
246 /**
247 * @throws StringIndexOutOfBoundsException {@inheritDoc}
248 */
249 @Override
250 public StringBuilder deleteCharAt(int index) {
251 super.deleteCharAt(index);
252 return this;
253 }
254
255 /**
256 * @throws StringIndexOutOfBoundsException {@inheritDoc}
257 */
258 @Override
259 public StringBuilder replace(int start, int end, String str) {
260 super.replace(start, end, str);
261 return this;
262 }
263
264 /**
265 * @throws StringIndexOutOfBoundsException {@inheritDoc}
266 */
267 @Override
268 public StringBuilder insert(int index, char[] str, int offset,
269 int len)
270 {
271 super.insert(index, str, offset, len);
272 return this;
273 }
274
275 /**
276 * @throws StringIndexOutOfBoundsException {@inheritDoc}
277 */
278 @Override
279 public StringBuilder insert(int offset, Object obj) {
280 super.insert(offset, obj);
281 return this;
282 }
283
284 /**
285 * @throws StringIndexOutOfBoundsException {@inheritDoc}
286 */
287 @Override
288 public StringBuilder insert(int offset, String str) {
289 super.insert(offset, str);
290 return this;
291 }
292
293 /**
294 * @throws StringIndexOutOfBoundsException {@inheritDoc}
295 */
296 @Override
297 public StringBuilder insert(int offset, char[] str) {
298 super.insert(offset, str);
299 return this;
300 }
301
302 /**
303 * @throws IndexOutOfBoundsException {@inheritDoc}
304 */
305 @Override
306 public StringBuilder insert(int dstOffset, CharSequence s) {
307 super.insert(dstOffset, s);
308 return this;
309 }
310
311 /**
312 * @throws IndexOutOfBoundsException {@inheritDoc}
313 */
314 @Override
315 public StringBuilder insert(int dstOffset, CharSequence s,
316 int start, int end)
317 {
318 super.insert(dstOffset, s, start, end);
319 return this;
320 }
321
322 /**
323 * @throws StringIndexOutOfBoundsException {@inheritDoc}
324 */
325 @Override
326 public StringBuilder insert(int offset, boolean b) {
327 super.insert(offset, b);
328 return this;
329 }
330
331 /**
332 * @throws IndexOutOfBoundsException {@inheritDoc}
333 */
334 @Override
335 public StringBuilder insert(int offset, char c) {
336 super.insert(offset, c);
337 return this;
338 }
339
340 /**
341 * @throws StringIndexOutOfBoundsException {@inheritDoc}
342 */
343 @Override
344 public StringBuilder insert(int offset, int i) {
345 super.insert(offset, i);
346 return this;
347 }
348
349 /**
350 * @throws StringIndexOutOfBoundsException {@inheritDoc}
351 */
352 @Override
353 public StringBuilder insert(int offset, long l) {
354 super.insert(offset, l);
355 return this;
356 }
357
358 /**
359 * @throws StringIndexOutOfBoundsException {@inheritDoc}
360 */
361 @Override
362 public StringBuilder insert(int offset, float f) {
363 super.insert(offset, f);
364 return this;
365 }
366
367 /**
368 * @throws StringIndexOutOfBoundsException {@inheritDoc}
369 */
370 @Override
371 public StringBuilder insert(int offset, double d) {
372 super.insert(offset, d);
373 return this;
374 }
375
376 /**
377 * @throws NullPointerException {@inheritDoc}
378 */
379 @Override
380 public int indexOf(String str) {
381 return super.indexOf(str);
382 }
383
384 /**
385 * @throws NullPointerException {@inheritDoc}
386 */
387 @Override
388 public int indexOf(String str, int fromIndex) {
389 return super.indexOf(str, fromIndex);
390 }
391
392 /**
393 * @throws NullPointerException {@inheritDoc}
394 */
395 @Override
396 public int lastIndexOf(String str) {
397 return super.lastIndexOf(str);
398 }
399
400 /**
401 * @throws NullPointerException {@inheritDoc}
402 */
403 @Override
404 public int lastIndexOf(String str, int fromIndex) {
405 return super.lastIndexOf(str, fromIndex);
406 }
407
408 @Override
409 public StringBuilder reverse() {
410 super.reverse();
411 return this;
412 }
413
414 @Override
415 public String toString() {
416 // Create a copy, don't share the array
417 return new String(value, 0, count);
418 }
419
420 /**
421 * Save the state of the <tt>StringBuilder</tt> instance to a stream
422 * (that is, serialize it).
423 *
424 * @serialData the number of characters currently stored in the string
425 * builder (<tt>int</tt>), followed by the characters in the
426 * string builder (<tt>char[]</tt>). The length of the
427 * <tt>char</tt> array may be greater than the number of
428 * characters currently stored in the string builder, in which
429 * case extra characters are ignored.
430 */
431 private void writeObject(java.io.ObjectOutputStream s)
432 throws java.io.IOException {
433 s.defaultWriteObject();
434 s.writeInt(count);
|