1283 return insert(offset, String.valueOf(d)); |
1283 return insert(offset, String.valueOf(d)); |
1284 } |
1284 } |
1285 |
1285 |
1286 /** |
1286 /** |
1287 * Returns the index within this string of the first occurrence of the |
1287 * Returns the index within this string of the first occurrence of the |
1288 * specified substring. The integer returned is the smallest value |
1288 * specified substring. |
1289 * <i>k</i> such that: |
1289 * |
|
1290 * <p>The returned index is the smallest value {@code k} for which: |
1290 * <pre>{@code |
1291 * <pre>{@code |
1291 * this.toString().startsWith(str, <i>k</i>) |
1292 * this.toString().startsWith(str, k) |
1292 * }</pre> |
1293 * }</pre> |
1293 * is {@code true}. |
1294 * If no such value of {@code k} exists, then {@code -1} is returned. |
1294 * |
1295 * |
1295 * @param str any string. |
1296 * @param str the substring to search for. |
1296 * @return if the string argument occurs as a substring within this |
1297 * @return the index of the first occurrence of the specified substring, |
1297 * object, then the index of the first character of the first |
1298 * or {@code -1} if there is no such occurrence. |
1298 * such substring is returned; if it does not occur as a |
|
1299 * substring, {@code -1} is returned. |
|
1300 */ |
1299 */ |
1301 public int indexOf(String str) { |
1300 public int indexOf(String str) { |
1302 return indexOf(str, 0); |
1301 return indexOf(str, 0); |
1303 } |
1302 } |
1304 |
1303 |
1305 /** |
1304 /** |
1306 * Returns the index within this string of the first occurrence of the |
1305 * Returns the index within this string of the first occurrence of the |
1307 * specified substring, starting at the specified index. The integer |
1306 * specified substring, starting at the specified index. |
1308 * returned is the smallest value {@code k} for which: |
1307 * |
|
1308 * <p>The returned index is the smallest value {@code k} for which: |
1309 * <pre>{@code |
1309 * <pre>{@code |
1310 * k >= Math.min(fromIndex, this.length()) && |
1310 * k >= Math.min(fromIndex, this.length()) && |
1311 * this.toString().startsWith(str, k) |
1311 * this.toString().startsWith(str, k) |
1312 * }</pre> |
1312 * }</pre> |
1313 * If no such value of <i>k</i> exists, then -1 is returned. |
1313 * If no such value of {@code k} exists, then {@code -1} is returned. |
1314 * |
1314 * |
1315 * @param str the substring for which to search. |
1315 * @param str the substring to search for. |
1316 * @param fromIndex the index from which to start the search. |
1316 * @param fromIndex the index from which to start the search. |
1317 * @return the index within this string of the first occurrence of the |
1317 * @return the index of the first occurrence of the specified substring, |
1318 * specified substring, starting at the specified index. |
1318 * starting at the specified index, |
|
1319 * or {@code -1} if there is no such occurrence. |
1319 */ |
1320 */ |
1320 public int indexOf(String str, int fromIndex) { |
1321 public int indexOf(String str, int fromIndex) { |
1321 return String.indexOf(value, 0, count, str, fromIndex); |
1322 return String.indexOf(value, 0, count, str, fromIndex); |
1322 } |
1323 } |
1323 |
1324 |
1324 /** |
1325 /** |
1325 * Returns the index within this string of the rightmost occurrence |
1326 * Returns the index within this string of the last occurrence of the |
1326 * of the specified substring. The rightmost empty string "" is |
1327 * specified substring. The last occurrence of the empty string "" is |
1327 * considered to occur at the index value {@code this.length()}. |
1328 * considered to occur at the index value {@code this.length()}. |
1328 * The returned index is the largest value <i>k</i> such that |
1329 * |
|
1330 * <p>The returned index is the largest value {@code k} for which: |
1329 * <pre>{@code |
1331 * <pre>{@code |
1330 * this.toString().startsWith(str, k) |
1332 * this.toString().startsWith(str, k) |
1331 * }</pre> |
1333 * }</pre> |
1332 * is true. |
1334 * If no such value of {@code k} exists, then {@code -1} is returned. |
1333 * |
1335 * |
1334 * @param str the substring to search for. |
1336 * @param str the substring to search for. |
1335 * @return if the string argument occurs one or more times as a substring |
1337 * @return the index of the last occurrence of the specified substring, |
1336 * within this object, then the index of the first character of |
1338 * or {@code -1} if there is no such occurrence. |
1337 * the last such substring is returned. If it does not occur as |
|
1338 * a substring, {@code -1} is returned. |
|
1339 */ |
1339 */ |
1340 public int lastIndexOf(String str) { |
1340 public int lastIndexOf(String str) { |
1341 return lastIndexOf(str, count); |
1341 return lastIndexOf(str, count); |
1342 } |
1342 } |
1343 |
1343 |
1344 /** |
1344 /** |
1345 * Returns the index within this string of the last occurrence of the |
1345 * Returns the index within this string of the last occurrence of the |
1346 * specified substring. The integer returned is the largest value <i>k</i> |
1346 * specified substring, searching backward starting at the specified index. |
1347 * such that: |
1347 * |
|
1348 * <p>The returned index is the largest value {@code k} for which: |
1348 * <pre>{@code |
1349 * <pre>{@code |
1349 * k <= Math.min(fromIndex, this.length()) && |
1350 * k <= Math.min(fromIndex, this.length()) && |
1350 * this.toString().startsWith(str, k) |
1351 * this.toString().startsWith(str, k) |
1351 * }</pre> |
1352 * }</pre> |
1352 * If no such value of <i>k</i> exists, then -1 is returned. |
1353 * If no such value of {@code k} exists, then {@code -1} is returned. |
1353 * |
1354 * |
1354 * @param str the substring to search for. |
1355 * @param str the substring to search for. |
1355 * @param fromIndex the index to start the search from. |
1356 * @param fromIndex the index to start the search from. |
1356 * @return the index within this sequence of the last occurrence of the |
1357 * @return the index of the last occurrence of the specified substring, |
1357 * specified substring. |
1358 * searching backward from the specified index, |
|
1359 * or {@code -1} if there is no such occurrence. |
1358 */ |
1360 */ |
1359 public int lastIndexOf(String str, int fromIndex) { |
1361 public int lastIndexOf(String str, int fromIndex) { |
1360 return String.lastIndexOf(value, 0, count, str, fromIndex); |
1362 return String.lastIndexOf(value, 0, count, str, fromIndex); |
1361 } |
1363 } |
1362 |
1364 |