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    1   /*
    2    * Copyright (c) 2005, Oracle and/or its affiliates. All rights reserved.
    3    * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
    4    *
    5    * This code is free software; you can redistribute it and/or modify it
    6    * under the terms of the GNU General Public License version 2 only, as
    7    * published by the Free Software Foundation.  Oracle designates this
    8    * particular file as subject to the "Classpath" exception as provided
    9    * by Oracle in the LICENSE file that accompanied this code.
   10    *
   11    * This code is distributed in the hope that it will be useful, but WITHOUT
   12    * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
   13    * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
   14    * version 2 for more details (a copy is included in the LICENSE file that
   15    * accompanied this code).
   16    *
   17    * You should have received a copy of the GNU General Public License version
   18    * 2 along with this work; if not, write to the Free Software Foundation,
   19    * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   20    *
   21    * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
   22    * or visit www.oracle.com if you need additional information or have any
   23    * questions.
   24    */
   25   
   26   package com.sun.source.tree;
   27   
   28   /**
   29    * A tree node for an 'if' statement.
   30    *
   31    * For example:
   32    * <pre>
   33    *   if ( <em>condition</em> )
   34    *      <em>thenStatement</em>
   35    *
   36    *   if ( <em>condition</em> )
   37    *       <em>thenStatement</em>
   38    *   else
   39    *       <em>elseStatement</em>
   40    * </pre>
   41    *
   42    * @jls section 14.9
   43    *
   44    * @author Peter von der Ah&eacute;
   45    * @author Jonathan Gibbons
   46    * @since 1.6
   47    */
   48   public interface IfTree extends StatementTree {
   49       ExpressionTree getCondition();
   50       StatementTree getThenStatement();
   51       /**
   52        * @return null if this if statement has no else branch.
   53        */
   54       StatementTree getElseStatement();
   55   }

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