01: /*
02: * Copyright 2006 Google Inc.
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License"); you may not
05: * use this file except in compliance with the License. You may obtain a copy of
06: * the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
10: * Unless required by applicable law or agreed to in writing, software
11: * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
12: * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
13: * License for the specific language governing permissions and limitations under
14: * the License.
15: */
16: package java.lang;
17:
18: /**
19: * Abstracts the notion of a sequence of characters.
20: */
21: public interface CharSequence {
22: char charAt(int index);
23:
24: int length();
25:
26: CharSequence subSequence(int start, int end);
27:
28: String toString();
29: }
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