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1
7
8 package java.lang;
9
10 import sun.misc.FloatingDecimal;
11
12
56 public final class StringBuilder
57 extends AbstractStringBuilder 
58 implements java.io.Serializable , CharSequence
59 {
60
61
62 static final long serialVersionUID = 4383685877147921099L;
63
64
68 public StringBuilder() {
69 super(16);
70 }
71
72
80 public StringBuilder(int capacity) {
81 super(capacity);
82 }
83
84
92 public StringBuilder(String str) {
93 super(str.length() + 16);
94 append(str);
95 }
96
97
106 public StringBuilder(CharSequence seq) {
107 this(seq.length() + 16);
108 append(seq);
109 }
110
111
115 public StringBuilder append(Object obj) {
116 return append(String.valueOf(obj));
117 }
118
119 public StringBuilder append(String str) {
120 super.append(str);
121 return this;
122 }
123
124 private StringBuilder append(StringBuilder sb) {
126 if (sb == null)
127 return append("null");
128 int len = sb.length();
129 int newcount = count + len;
130 if (newcount > value.length)
131 expandCapacity(newcount);
132 sb.getChars(0, len, value, count);
133 count = newcount;
134 return this;
135 }
136
137
156 public StringBuilder append(StringBuffer sb) {
157 super.append(sb);
158 return this;
159 }
160
161
164 public StringBuilder append(CharSequence s) {
165 if (s == null)
166 s = "null";
167 if (s instanceof String )
168 return this.append((String )s);
169 if (s instanceof StringBuffer )
170 return this.append((StringBuffer )s);
171 if (s instanceof StringBuilder )
172 return this.append((StringBuilder )s);
173 return this.append(s, 0, s.length());
174 }
175
176
179 public StringBuilder append(CharSequence s, int start, int end) {
180 super.append(s, start, end);
181 return this;
182 }
183
184 public StringBuilder append(char str[]) {
185 super.append(str);
186 return this;
187 }
188
189 public StringBuilder append(char str[], int offset, int len) {
190 super.append(str, offset, len);
191 return this;
192 }
193
194
198 public StringBuilder append(boolean b) {
199 super.append(b);
200 return this;
201 }
202
203 public StringBuilder append(char c) {
204 super.append(c);
205 return this;
206 }
207
208
212 public StringBuilder append(int i) {
213 super.append(i);
214 return this;
215 }
216
217
221 public StringBuilder append(long lng) {
222 super.append(lng);
223 return this;
224 }
225
226
230 public StringBuilder append(float f) {
231 super.append(f);
232 return this;
233 }
234
235
239 public StringBuilder append(double d) {
240 super.append(d);
241 return this;
242 }
243
244
247 public StringBuilder appendCodePoint(int codePoint) {
248 super.appendCodePoint(codePoint);
249 return this;
250 }
251
252
255 public StringBuilder delete(int start, int end) {
256 super.delete(start, end);
257 return this;
258 }
259
260
263 public StringBuilder deleteCharAt(int index) {
264 super.deleteCharAt(index);
265 return this;
266 }
267
268
271 public StringBuilder replace(int start, int end, String str) {
272 super.replace(start, end, str);
273 return this;
274 }
275
276
279 public StringBuilder insert(int index, char str[], int offset,
280 int len)
281 {
282 super.insert(index, str, offset, len);
283 return this;
284 }
285
286
292 public StringBuilder insert(int offset, Object obj) {
293 return insert(offset, String.valueOf(obj));
294 }
295
296
300 public StringBuilder insert(int offset, String str) {
301 super.insert(offset, str);
302 return this;
303 }
304
305
308 public StringBuilder insert(int offset, char str[]) {
309 super.insert(offset, str);
310 return this;
311 }
312
313
316 public StringBuilder insert(int dstOffset, CharSequence s) {
317 if (s == null)
318 s = "null";
319 if (s instanceof String )
320 return this.insert(dstOffset, (String )s);
321 return this.insert(dstOffset, s, 0, s.length());
322 }
323
324
327 public StringBuilder insert(int dstOffset, CharSequence s,
328 int start, int end)
329 {
330 super.insert(dstOffset, s, start, end);
331 return this;
332 }
333
334
340 public StringBuilder insert(int offset, boolean b) {
341 super.insert(offset, b);
342 return this;
343 }
344
345
349 public StringBuilder insert(int offset, char c) {
350 super.insert(offset, c);
351 return this;
352 }
353
354
360 public StringBuilder insert(int offset, int i) {
361 return insert(offset, String.valueOf(i));
362 }
363
364
370 public StringBuilder insert(int offset, long l) {
371 return insert(offset, String.valueOf(l));
372 }
373
374
380 public StringBuilder insert(int offset, float f) {
381 return insert(offset, String.valueOf(f));
382 }
383
384
390 public StringBuilder insert(int offset, double d) {
391 return insert(offset, String.valueOf(d));
392 }
393
394
397 public int indexOf(String str) {
398 return indexOf(str, 0);
399 }
400
401
404 public int indexOf(String str, int fromIndex) {
405 return String.indexOf(value, 0, count,
406 str.toCharArray(), 0, str.length(), fromIndex);
407 }
408
409
412 public int lastIndexOf(String str) {
413 return lastIndexOf(str, count);
414 }
415
416
419 public int lastIndexOf(String str, int fromIndex) {
420 return String.lastIndexOf(value, 0, count,
421 str.toCharArray(), 0, str.length(), fromIndex);
422 }
423
424 public StringBuilder reverse() {
425 super.reverse();
426 return this;
427 }
428
429 public String toString() {
430 return new String (value, 0, count);
432 }
433
434
445 private void writeObject(java.io.ObjectOutputStream s)
446 throws java.io.IOException {
447 s.defaultWriteObject();
448 s.writeInt(count);
449 s.writeObject(value);
450 }
451
452
456 private void readObject(java.io.ObjectInputStream s)
457 throws java.io.IOException , ClassNotFoundException {
458 s.defaultReadObject();
459 count = s.readInt();
460 value = (char[]) s.readObject();
461 }
462
463 }
464 |
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