1 /*
2  *  Licensed to the Apache Software Foundation (ASF) under one or more
3  *  contributor license agreements.  See the NOTICE file distributed with
4  *  this work for additional information regarding copyright ownership.
5  *  The ASF licenses this file to You under the Apache License, Version 2.0
6  *  (the "License"); you may not use this file except in compliance with
7  *  the License.  You may obtain a copy of the License at
8  *
9  *     http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  */
17 
18 package java.lang;
19 
20 
21 /**
22  * Represents a command that can be executed. Often used to run code in a
23  * different {@link Thread}.
24  */
25 public interface Runnable {
26 
27     /**
28      * Starts executing the active part of the class' code. This method is
29      * called when a thread is started that has been created with a class which
30      * implements {@code Runnable}.
31      */
run()32     public void run();
33 }
34